Small electric rotary tillage structure

Abstract

The utility model discloses a small -size electric rotary tiller structure, including the mounting bracket 41, set up on the mounting bracket 41's gear box 42, set up in the gear box 42 lower extreme's rotary cutter module 43 and set up on the gear box 42's rotary cutter motor 44, be provided with the shock attenuation module 45 for supporting gear box 42 on mounting bracket 41, rotary cutter motor 44 is installed in one end of gear box 42, and one side of gear box 42 is provided with gearshift device 46. Adopt the gear box 42 of multiple gears transmission rotary cutter motor 44 and the power between rotary cutter module 43, switch the output gear position of gear box 42 through gearshift device 46, not only can increase rotary tiller mechanism operation mode, realize the adjustment rotary tiller mechanism working speed, and can avoid rotary cutter module 43 instantaneous power too big and cause rotary cutter motor 44 damage. Secondly, gear box 42 is installed on mounting bracket 41 through shock attenuation module 45, reduces the vibration of rotary tiller mechanism working day, prevents the vibration of rotary cutter module 43 work and accelerates the gear wear and tear in gear box 42.

Description

Technical Field

[0001] This utility model relates to the field of agricultural machinery, and specifically refers to a small electric rotary tillage structure. Background Technology

[0002] Agricultural machinery (referred to as "agricultural equipment") refers to various mechanical equipment used in agricultural production and related processes, including tractors, seeders, harvesters, and plant protection drones, aiming to improve agricultural production efficiency, reduce labor intensity, and ensure food security. The development of agricultural machinery has undergone a process from traditional manual labor to full mechanization: China gradually established its agricultural machinery industrial system after 1949, producing its first "Dongfanghong" tractor in 1958. Before the reform and opening up, it had already formed a machinery manufacturing capacity covering tillage, sowing, and harvesting. Currently, agricultural machinery has become a core force driving the high-quality development of modern agriculture.

[0003] With the continuous development of new energy power systems, agricultural machinery using electric tractors is gradually becoming mainstream in the market. For example, the utility model patent with Chinese patent authorization announcement number CN 223094162 U discloses a multi-functional electric tiller, which includes a tractor, a rotary tillage mechanism, and a lifting bracket mechanism set at the rear of the tractor for raising and lowering the rotary tillage mechanism. The lifting bracket mechanism is provided with a quick-connect frame for assembling and disassembling the rotary tillage mechanism. The quick-connect frame includes an upper support rod and a lower support rod for fastening the support connecting frame, and a left connecting plate and a right connecting plate sleeved on both ends of the upper and lower support rods for pivotal connection with the lifting bracket mechanism. The upper and lower ends of both sides of the support connecting frame are respectively provided with upper fastening grooves and lower fastening grooves that can be fastened to the upper and lower support rods, and are locked and fixed to the left and right connecting plates by bolt groups or pins passing through the support connecting frame.

[0004] However, in the aforementioned patent, the rotary tillage mechanism's rotary blade motor is directly connected to the transmission assembly, and the gears are limited. This not only makes it impossible to switch the working speed of the rotary tillage mechanism, but also easily damages the rotary blade motor.

[0005] In view of the above, the inventors propose the following technical solution. Utility Model Content

[0006] The purpose of this invention is to overcome the shortcomings of the existing technology and provide a small electric rotary tillage structure.

[0007] To solve the above-mentioned technical problems, the present invention adopts the following technical solution: a small electric rotary tiller structure, comprising: a mounting frame, a gearbox mounted on the mounting frame, a rotary blade module mounted on the lower end of the gearbox, and a rotary blade motor mounted on the gearbox. The mounting frame is provided with a shock-absorbing module for supporting the gearbox; the rotary blade motor is mounted on one end of the gearbox, and a shifting device is provided on one side of the gearbox.

[0008] Furthermore, in the above technical solution, the shock absorption module includes a connecting bracket mounted on the gearbox, multiple shock absorption brackets mounted on the mounting frame for supporting the connecting bracket, at least one shock absorption adhesive mounted on the shock absorption bracket for bearing the connecting bracket, a first bolt group connecting the connecting bracket, the shock absorption adhesive, and the shock absorption bracket, and a second bolt group fixing the shock absorption bracket and the mounting frame.

[0009] Furthermore, in the above technical solution, the shock-absorbing bracket is provided with a positioning ring for being fitted around the shock-absorbing rubber.

[0010] Furthermore, in the above technical solution, the shock-absorbing bracket is arched, and both sides are fixed to the mounting frame by the second bolt group. The shock-absorbing adhesive is installed in the middle of the shock-absorbing bracket, and the middle of the shock-absorbing bracket is also bent downward to form a baffle.

[0011] Furthermore, in the above technical solution, damping rubber is installed on both sides of the shock-absorbing bracket, and a steel sleeve is fitted on the first bolt group, penetrating the middle of the two damping rubbers. A nut washer is provided on the inner side of the shock-absorbing bracket to cooperate with the first bolt group to lock the two damping rubbers.

[0012] Furthermore, in the above technical solution, connecting brackets are installed on both sides of the gearbox, and four shock-absorbing brackets are arranged in a matrix on the mounting frame and distributed below the connecting brackets on both sides of the gearbox; the mounting frame has a mounting hole for mounting the gearbox in the middle, and the connecting brackets are installed on both sides of the gearbox by a third bolt group and press against the shock-absorbing rubber, so that the gearbox is suspended and supported in the mounting hole.

[0013] Furthermore, in the above technical solution, the shifting device includes a shift lever mounted on the side wall of the gearbox and capable of shifting the shift gear shaft, an electric push rod disposed on the side of the gearbox and used to push the shift lever to swing, and a first buffer spring and a second buffer spring disposed on the electric push rod and located on both sides of the shift lever.

[0014] Furthermore, in the above technical solution, the shift lever is Z-shaped, one end of the shift lever is provided with a locking groove to be fastened to the retaining ring of the shift gear shaft, and the other end of the shift lever is provided with a push rod shaft sleeved on the electric push rod.

[0015] Furthermore, in the above technical solution, the telescopic part of the electric actuator is provided with a threaded rod part, and the first buffer spring and the second buffer spring are sleeved on the threaded rod part and limited to the threaded rod part by a nut.

[0016] After adopting the above technical solution, this utility model has the following beneficial effects compared with the prior art: In this utility model, a multi-gear gearbox is used to transmit power between the rotary tiller motor and the rotary tiller module. By switching the output gears of the gearbox through a shifting device, not only can the working modes of the rotary tiller mechanism be increased and the working speed of the rotary tiller mechanism be adjusted, but also the damage to the rotary tiller motor caused by excessive instantaneous power of the rotary tiller module can be avoided. Secondly, by mounting the gearbox on the mounting frame through a shock-absorbing module, the vibration of the rotary tiller mechanism during operation is reduced, preventing the vibration generated by the rotary tiller module from accelerating the wear of the gears inside the gearbox. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the structure of this utility model;

[0018] Figure 2 This is a schematic diagram of the gear shifting device in this utility model;

[0019] Figure 3 This is a schematic diagram of the shock absorption module in this utility model;

[0020] Figure 4 This is an exploded view of the shock absorption module in this utility model. Detailed Implementation

[0021] The present invention will be further described below with reference to specific embodiments and accompanying drawings.

[0022] See Figures 1 to 4 As shown, a small electric rotary tiller structure includes a mounting frame 41, a gearbox 42 mounted on the mounting frame 41, a rotary blade module 43 mounted at the lower end of the gearbox 42, and a rotary blade motor 44 mounted on the gearbox 42. A shock-absorbing module 45 is mounted on the mounting frame 41 to support the gearbox 42. The rotary blade motor 44 is mounted at one end of the gearbox 42, and a shifting device 46 is provided on one side of the gearbox 42. The multi-speed gearbox 42 transmits power between the rotary blade motor 44 and the rotary blade module 43. The shifting device 46 switches the output speed of the gearbox 42, which not only increases the number of working modes of the rotary tiller and allows for adjustment of its working speed, but also prevents damage to the rotary blade motor 44 caused by excessive instantaneous power from the rotary blade module 43. Furthermore, mounting the gearbox 42 on the mounting frame 41 via the shock-absorbing module 45 reduces vibration during the operation of the rotary tiller and prevents the vibration generated by the rotary blade module 43 from accelerating gear wear within the gearbox 42.

[0023] The shock-absorbing module 45 includes a connecting bracket 451 mounted on the gearbox 42, multiple shock-absorbing brackets 452 mounted on the mounting frame 41 for supporting the connecting bracket 451, at least one shock-absorbing rubber 453 mounted on the shock-absorbing bracket 452 for supporting the connecting bracket 451, a first bolt group 454 connecting the connecting bracket 451, the shock-absorbing rubber 453, and the shock-absorbing bracket 452, and a second bolt group 455 fixing the shock-absorbing bracket 452 to the mounting frame 41. By using the shock-absorbing module 45 mounted on the mounting frame 41 to support the gearbox 42, the vibration transmission between the mounting frame 41 and the gearbox 42 is reduced, enabling the rotary tiller to operate stably and extending its service life. Secondly, the shock-absorbing rubber 453 is placed between the connecting bracket 451 and the shock-absorbing bracket 452. The shock-absorbing rubber 453 reduces the wear of the rotary tiller when it bumps. The bracket 451 and the shock-absorbing bracket 452 are connected in series by the first bolt group 454, which allows for quick replacement of the shock-absorbing rubber 453 and long-term protection of the shock-absorbing and buffering effect.

[0024] The shock-absorbing bracket 452 is provided with a positioning ring 4521 for being fitted around the shock-absorbing rubber 453. By using the positioning ring 4521 on the shock-absorbing bracket 452 to fit onto the shock-absorbing rubber 453, the positioning ring 4521 holds and limits the shock-absorbing rubber 453, preventing the shock-absorbing rubber 453 from being directly flattened by the connecting bracket 451 and losing its cushioning effect, thereby extending the life of the shock-absorbing rubber 453.

[0025] The shock absorber bracket 452 is arched and fixed to the mounting bracket 41 on both sides by the second bolt group 455. The shock absorber adhesive 453 is installed in the middle of the shock absorber bracket 452, and the middle of the shock absorber bracket 452 is also bent downward to form a baffle part 4522.

[0026] Both sides of the shock-absorbing bracket 452 are equipped with shock-absorbing rubber 453, and a steel sleeve 456 is fitted on the first bolt group 454, which passes through the middle of the two shock-absorbing rubber 453. The inner side of the shock-absorbing bracket 452 is provided with a nut washer 457 that cooperates with the first bolt group 454 to lock the two shock-absorbing rubber 453.

[0027] Connecting brackets 451 are installed on both sides of the gearbox 42. Four shock-absorbing brackets 452 are arranged in a matrix on the mounting frame 41 and distributed below the connecting brackets 451 on both sides of the gearbox 42. The mounting frame 41 has a mounting hole for mounting the gearbox 42 in the middle. The connecting brackets 451 are installed on both sides of the gearbox 42 by the third bolt group 457 and press against the shock-absorbing rubber 453, suspending and supporting the gearbox 42 in the mounting hole.

[0028] The shifting device 46 includes a shift lever 461 mounted on the side wall of the gearbox 42 and capable of actuating the shift gear shaft 421, an electric actuator 462 disposed beside the gearbox 42 and used to push the shift lever 461 to swing, and a first buffer spring 463 and a second buffer spring 464 disposed on the electric actuator 462 and located on both sides of the shift lever 461. By setting the first buffer spring 463 and the second buffer spring 464 on both sides of the shift lever 461, the electric actuator 462 and the shift lever 461 are elastically connected and have a certain floating space. When the electric actuator 462 pushes the shift lever 461 to swing for shifting, even if the shift gear cannot be successfully engaged in one go, it will not disengage or get stuck, thereby effectively avoiding the situation where the shift gear in the gearbox 42 gets stuck or fails to shift.

[0029] The shift lever 461 is Z-shaped. One end of the shift lever 461 is provided with a locking groove 4611 that is fastened to the retaining ring 422 of the shift gear shaft 421. The other end of the shift lever 461 is provided with a push rod shaft 4612 that is sleeved on the electric push rod 462.

[0030] The telescopic part of the electric actuator 462 is provided with a threaded rod part, and the first buffer spring 463 and the second buffer spring 464 are sleeved on the threaded rod part and limited to the threaded rod part by a nut 4621.

[0031] In summary, in this invention, when the rotary blade motor 44 drives the rotary blade module 43 through the gearbox 42, the shifting device 46 on one side of the gearbox 42 pushes the shifting gear to change the gear position, thereby altering the working speed of the rotary blade module 43. Furthermore, by setting a first buffer spring 463 and a second buffer spring 464 on both sides of the shift lever 461, the gears inside the gearbox 42 are prevented from jamming or disengaging during meshing, ensuring a high success rate for gear shifting. Secondly, a shock-absorbing module 45 is formed by placing shock-absorbing rubber 453 between the connecting bracket 451 and the shock-absorbing bracket 452. This shock-absorbing module 45 counteracts the vibration transmission between the mounting bracket 41 and the gearbox 42 bracket, making the rotary tiller move more smoothly, reducing wear between parts, and extending the service life of the rotary tiller. In addition, a positioning ring 4521 is set on the shock absorber bracket 452 to limit the position of the shock absorber 453, so as to prevent the shock absorber 453 from being flattened and damaged. Moreover, the positioning ring 4521 can make the shock absorber 453 deform evenly under force, thus improving its service life.

[0032] Of course, the above description is only a specific embodiment of the present utility model and is not intended to limit the scope of the present utility model. All equivalent changes or modifications made to the structure, features and principles described in the claims of the present utility model should be included in the scope of the claims of the present utility model.

Claims

1. A small electric rotary tiller structure, comprising a mounting frame (41), a gearbox (42) mounted on the mounting frame (41), a rotary blade module (43) mounted at the lower end of the gearbox (42), and a rotary blade motor (44) mounted on the gearbox (42), characterized in that: The mounting bracket (41) is provided with a shock-absorbing module (45) for supporting the gearbox (42). The rotary cutter motor (44) is installed at one end of the gearbox (42), and a shifting device (46) is provided on one side of the gearbox (42).

2. The small electric rotary tiller structure according to claim 1, characterized in that: The shock-absorbing module (45) includes a connecting bracket (451) disposed on the gearbox (42), a plurality of shock-absorbing brackets (452) disposed on the mounting bracket (41) and used to support the connecting bracket (451), at least one shock-absorbing rubber (453) mounted on the shock-absorbing bracket (452) and used to support the connecting bracket (451), a first bolt group (454) connecting the connecting bracket (451), the shock-absorbing rubber (453) and the shock-absorbing bracket (452) in series, and a second bolt group (455) fixing the shock-absorbing bracket (452) and the mounting bracket (41).

3. The small electric rotary tiller structure according to claim 2, characterized in that: The shock absorber bracket (452) is provided with a positioning ring (4521) for being fitted around the shock absorber rubber (453).

4. The small electric rotary tiller structure according to claim 3, characterized in that: The shock absorber bracket (452) is arched and fixed to the mounting bracket (41) on both sides by the second bolt group (455). The shock absorber adhesive (453) is installed in the middle of the shock absorber bracket (452). The middle of the shock absorber bracket (452) is also bent downward to form a baffle part (4522).

5. A small electric rotary tiller structure according to claim 3, characterized in that: Both sides of the shock absorber bracket (452) are equipped with shock absorber rubber (453), and a steel sleeve (456) is fitted on the first bolt group (454) that passes through the middle of the two shock absorber rubbers (453). The inner side of the shock absorber bracket (452) is provided with a nut washer (457) that cooperates with the first bolt group (454) to lock the two shock absorber rubbers (453).

6. A small electric rotary tiller structure according to any one of claims 1-5, characterized in that: The gearbox (42) is equipped with connecting brackets (451) on both sides. Four shock-absorbing brackets (452) are arranged in a matrix on the mounting frame (41) and distributed below the connecting brackets (451) on both sides of the gearbox (42). The mounting frame (41) has a mounting hole for mounting the gearbox (42) in the middle. The connecting brackets (451) are installed on both sides of the gearbox (42) by the third bolt group (458) and press against the shock-absorbing rubber (453) to suspend and support the gearbox (42) in the mounting hole.

7. A small electric rotary tiller structure according to any one of claims 1-5, characterized in that: The shifting device (46) includes a shift lever (461) mounted on the side wall of the gearbox (42) and capable of shifting the shift gear shaft (421), an electric push rod (462) disposed on the side of the gearbox (42) and used to push the shift lever (461) to swing, and a first buffer spring (463) and a second buffer spring (464) disposed on the electric push rod (462) and located on both sides of the shift lever (461).

8. A small electric rotary tillage structure according to claim 7, characterized in that: The shift lever (461) is Z-shaped. One end of the shift lever (461) is provided with a locking groove (4611) that is fastened to the retaining ring (422) of the shift gear shaft (421). The other end of the shift lever (461) is provided with a push rod shaft (4612) sleeved on the electric push rod (462).

9. A small electric rotary tiller structure according to claim 8, characterized in that: The telescopic part of the electric actuator (462) is provided with a threaded rod part, and the first buffer spring (463) and the second buffer spring (464) are sleeved on the threaded rod part and limited to the threaded rod part by a nut (4621).

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