An electric micro-tiller and weeder for tea gardens

Abstract

A tea garden electric micro-tillage weeder comprises a rotary tillage and weeding assembly comprising a forward-rotating blade group, a counter-rotating blade group, and a transmission mechanism. Both the forward-rotating blade group and the counter-rotating blade group are composed of multiple blades mounted on a spiral. The forward-rotating blade group and the counter-rotating blade group are coaxially mounted, and the transmission mechanism is used to drive the forward-rotating blade group and the counter-rotating blade group to rotate coaxially and in opposite directions. In the present invention, the forward-rotating blade group and the counter-rotating blade group rotate in opposite directions. When the forward-rotating blade group rotates clockwise as a rotary tillage blade group and the counter-rotating blade group rotates counterclockwise as a weeding blade group, soil and weeds are discharged to one side, quickly removing weeds, effectively improving weeding efficiency, and reducing labor intensity.

Description

Technical Field

[0001] The present invention relates to the field of agricultural machinery, in particular to an electric micro-tillage weeder for tea gardens. Background Art

[0002] Tea, a popular and healthy beverage, is attracting increasing attention for its safety. Most tea is grown in hilly and mountainous areas in my country, where tea plantations are densely planted, with a tillage path of less than 600 mm between rows. Current micro-tillage machines have a large working width (greater than 600 mm), making them inadequate for use. Furthermore, the blades of existing micro-tillage machines mostly rotate in a forward direction (the direction of rotation matches the machine's forward direction), which improves soil burial. However, weeds tend to float to the surface, making them ineffective at burying them and hindering weed control. This necessitates increased herbicide dosages later, which in turn affects tea quality. Existing micro-tillage machines are mostly fuel-powered, and engine exhaust emissions pollute the tea tree's growing environment, easily causing tea leaf adsorption and affecting the quality of the finished product. Furthermore, current micro-tillage machines utilize a traditional multi-shaft gearbox design, which is bulky, heavy, complex to operate, and prone to shifting and jamming, compromising overall portability. Summary of the Invention

[0003] In order to solve the defects of poor weeding effect and inconvenient operation of tea garden machines in the above-mentioned prior art, the present invention proposes an electric micro-tillage weeding machine for tea garden.

[0004] The present invention adopts the following technical solutions:

[0005] Disclosed is an electric micro-tillage weeder for a tea garden, comprising a rotary tillage and weeding assembly, the rotary tillage and weeding assembly comprising a forward-rotating blade group, a counter-rotating blade group, and a transmission mechanism; the forward-rotating blade group and the counter-rotating blade group both comprise a plurality of blades mounted on a spiral line; the forward-rotating blade group and the counter-rotating blade group are coaxially mounted, and the transmission mechanism is used to drive the forward-rotating blade group and the counter-rotating blade group to rotate coaxially and in opposite directions.

[0006] Preferably, the rotary tillage and weeding assembly further comprises a left reversing shaft sleeve, a right reversing shaft sleeve and a forward rotating cutter shaft; both ends of the forward rotating cutter shaft are provided with forward rotating cutter groups, the left reversing shaft sleeve and the right reversing shaft sleeve are both sleeved on the forward rotating cutter shaft, and the left reversing shaft sleeve and the right reversing shaft sleeve are respectively provided with reversing cutter groups;

[0007] The transmission mechanism is used to drive the left reversing sleeve, the right reversing sleeve and the forward rotating cutter shaft to rotate, and the left reversing sleeve and the right reversing sleeve rotate in the same direction, and the forward rotating cutter shaft rotates in the opposite direction relative to the left reversing sleeve.

[0008] Preferably, at the same end of the forward-rotating cutter shaft, the rotation direction of the helical line where the forward-rotating cutter group is located is opposite to the rotation direction of the helical line where the reverse-rotating cutter group is located.

[0009] Preferably, the rotation directions of the spiral lines where the forward-rotating cutter groups at two opposite ends of the forward-rotating cutter shaft are located are opposite.

[0010] Preferably, it further includes a first housing; the transmission mechanism includes: a worm transmission unit, a left reverse driving gear, a right reverse driving gear, a left reverse driven gear, a right reverse driven gear and an intermediate shaft; the forward rotation cutter shaft, the left reverse shaft sleeve, the right reverse shaft sleeve and the intermediate shaft are all rotatably arranged on the first housing;

[0011] The left reverse driving gear and the right reverse driving gear are both coaxially arranged on the intermediate shaft and fixedly connected; the left reverse driven gear is coaxially arranged on the left reverse shaft sleeve and fixedly connected, and the right reverse driven gear is coaxially arranged on the right reverse shaft sleeve and fixedly connected; the left reverse driving gear and the right reverse driving gear are respectively engaged with the left reverse driven gear and the right reverse driven gear; the worm transmission unit is used to drive the forward cutter shaft and the intermediate shaft to rotate in the same direction.

[0012] Preferably, the worm transmission unit includes: a reverse worm gear, a forward worm gear and a worm; the reverse turbine is coaxially arranged on the intermediate shaft and fixedly connected, and the forward worm gear is coaxially arranged on the forward cutter shaft and fixedly connected; the worm is rotatably arranged on the first housing, and the reverse worm gear and the forward worm gear are both engaged with the worm, and the worm is used as an active component for an external rotary tillage motor.

[0013] Preferably, it further comprises a second housing and a transmission, wherein the transmission comprises: a speed change driving shaft, a driven shaft, an upper driving gear, a lower driving gear, an upper driven gear, a lower driven gear, a shift finger sliding plate and a shift fork;

[0014] The speed-changing driving shaft and the driven shaft are both rotatably arranged on the second housing, the speed-changing driving shaft is used to connect to the rotary tillage motor, and the driven shaft is used to drive the worm to rotate;

[0015] The upper driving gear and the lower driving gear are both loosely sleeved on the speed change driving shaft; the upper driven gear and the lower driven gear are both coaxially sleeved on the driven shaft, and the three rotate synchronously; the upper driven gear is constantly meshed with the upper driving gear, and the lower driven gear is constantly meshed with the lower driving gear;

[0016] The shift finger slide is sleeved on the speed change driving shaft and cooperates with the speed change driving shaft spline; a guide rail is provided on the second housing, and a slider is slidably provided on the guide rail; one end of the shift fork is connected to the shift finger slide, and the other end is connected to the slider; the gear handle is used to drive the shift fork to slide along the guide rail, and the shift finger slide follows the shift fork to slide axially along the speed change driving shaft, realizing transmission between the speed change driving shaft and the upper driving gear or the lower driving gear;

[0017] A countersunk hole is provided at the bottom of the guide rail, a compression spring is provided in the countersunk hole, and a positioning ball is provided on the top of the compression spring; and a plurality of hemispherical grooves matching the positioning balls are provided on the slider.

[0018] Preferably, it also includes a traveling transmission assembly; the traveling transmission assembly includes: a traveling driving shaft, a left wheel hub, a right wheel hub, a traveling motor, a driving sprocket, a driven sprocket and a transmission chain; the traveling driving shaft is used to drive the left wheel hub and the right wheel hub to rotate synchronously, the driven sprocket is sleeved on the traveling driving shaft and fixedly connected, and the driving sprocket is rotatably arranged on the second shell; the driven sprocket and the driving sprocket are connected by a transmission chain; the traveling motor is used to drive the driving sprocket to rotate.

[0019] Preferably, it also includes an armrest assembly; the armrest assembly includes: a left steering line, a right steering line, a left steering line handle and a right steering line handle; the travel transmission assembly also includes: a left active block, a right active block, a left driven block, a right driven block, a left driven shaft, a right driven shaft, a left shift fork, a right shift fork, a left shift fork baffle, a right shift fork baffle, a left support seat, a left steering line core, a left compression spring, a right spline, a left spline, a right steering line core, a right support seat and a right compression spring;

[0020] The left support seat and the right support seat are both arranged on the second housing, and the two ends of the travel driving shaft are rotatably connected to the left support seat and the right support seat respectively; the left active block and the right active block are respectively loosely sleeved on the two ends of the travel driving shaft, and the left active block cooperates with the travel driving shaft through the left spline, and the right active block cooperates with the travel driving shaft through the right spline;

[0021] The left driven shaft and the right driven shaft are rotatably arranged on the left support seat and the right support seat respectively, the left driven block is coaxially arranged at one end of the left driven shaft, and the other end of the left driven shaft is connected to the left wheel hub; the right driven block is coaxially arranged at one end of the right driven shaft, and the other end of the right driven shaft is connected to the right wheel hub;

[0022] The left compression spring and the right compression spring are both sleeved on the walking active shaft, the free end of the left compression spring is connected to the left active block, and the free end of the right compression spring is connected to the right active block; the left compression spring is used to push the left active block to engage with the left driven block, and the right compression spring is used to push the right active block to engage with the right driven block;

[0023] The left shift fork baffle and the right shift fork baffle are respectively arranged on the left support seat and the right support seat; one end of the left steering wire core is connected to the first end of the left shift fork, and the other end of the left steering wire core passes through the left shift fork baffle and is connected to the left steering wire handle via the left steering wire; the left steering wire handle is used to pull the left shift fork through the left steering wire and the left steering wire core to push the left active block to compress the left compression spring, so that the left active block is separated from the left driven block;

[0024] One end of the right steering cable is connected to the right shift fork, and the other end of the right steering cable core passes through the right shift fork baffle and is connected to the right steering cable handle through the right steering cable; the right steering cable handle is used to pull the right shift fork through the right steering cable and the right steering cable core to push the right active block to compress the right compression spring, so that the right active block is separated from the right driven block.

[0025] Preferably, the armrest assembly further comprises: an armrest frame, an armrest frame support and an adjustment handle;

[0026] The armrest support is installed on the second shell, the armrest is arranged on the armrest support, the armrest is hinged to the armrest support, and the adjustment handle is arranged at the connection between the armrest and the armrest support, and the adjustment handle is used to adjust the angle between the armrest and the armrest support;

[0027] The handrail frame is provided with a driving speed adjustment handle and a rotary tillage speed adjustment handle which are easy to hold, and the left steering line handle and the right steering line handle are respectively arranged on the driving speed adjustment handle and the rotary tillage speed adjustment handle.

[0028] The advantages of the present invention are:

[0029] (1) In the present invention, a forward-rotating knife group and a reverse-rotating knife group with opposite rotation directions are provided. When the forward-rotating knife group acts as a rotary tillage knife group and the reverse-rotating knife group acts as a weeding knife group and rotates counterclockwise, soil and weeds are discharged to one side, which can quickly remove weeds, effectively improve weeding efficiency, and reduce labor intensity.

[0030] (2) In the present invention, two groups of forward-rotating blade groups are respectively installed on the outside of the machine body, and two groups of reverse-rotating blade groups are respectively installed on the inside of the machine body. The forward-rotating blade group on the right outside of the machine body is arranged in a right spiral, and the reverse-rotating blade group on the right inside is arranged in a left spiral; the forward-rotating blade group on the left outside of the machine body is arranged in a left spiral, and the reverse-rotating blade group on the left inside is arranged in a right spiral. When the machine is rotary tilling and weeding, the soil on the left end of the machine is discharged to the left, and the soil on the right end of the machine is discharged to the right, which plays the role of trenching. It can realize the trenching while achieving rotary tillage and crushing of the soil, and achieve better weed burying, thereby improving the weeding effect.

[0031] (3) The present invention uses dual motors to drive the travel transmission assembly and the rotary tillage and weeding assembly respectively, achieving green, environmentally friendly, and pollution-free rotary tillage and weeding operations; the motors have a built-in deceleration function, which saves space and weight, facilitating field operations. In the present invention, the travel speed can be adjusted by communicating with the travel motor via the travel speed adjustment handle; the rotation speed of the forward and reverse blade groups can be adjusted by communicating with the rotary tillage speed adjustment handle and the rotary tillage motor. In this way, the travel speed and tillage speed can be adjusted according to different road conditions and tillage results without changing the gear position.

[0032] (4) In the present invention, the travel transmission component is driven by a motor and a chain transmission mode, which is suitable for working in an environment with relatively harsh conditions such as sand and soil, thereby improving the trouble-free working time of the micro-tillage weeder, ensuring its working stability, and extending the service life of the micro-tillage weeder.

[0033] (5) In the present invention, the left steering handle controls the clutching of the left active block and the left driven block, while the right steering handle controls the clutching of the right active block and the right driven block. This allows the travel transmission assembly to have a manually adjustable steering function by controlling the power cutoff between the left wheel hub and the right wheel hub. While the machine is traveling, the left and right steering of the machine can be manually adjusted by the handle. This saves manpower and makes the machine safer when operating back and forth in the field.

[0034] (6) The transmission in the present invention is a mechanical gear transmission. Compared with electronic speed regulation, the present invention achieves different speeds by changing the reduction ratio of the gear set. It has the advantages of compact structure, small volume, high transmission accuracy, smooth movement and low noise. It can achieve a larger reduction ratio, which is beneficial to improving the efficiency of rotary tillage and weeding. In the present invention, the tail of the shift fork is provided with a slider and a guide rail, so that the shift fork can slide vertically up and down, preventing the shift fork from having insufficient contact due to angle problems. The interior of the guide rail is provided with a spherical groove and a spring ball, which can position the transmission in neutral, slow gear and fast gear.

[0035] (7) The armrests of the present invention are adjustable. The tightness of the armrests can be adjusted by rotating the adjustment handle, thereby changing the position of the armrests to meet the usage requirements of people of different heights. When the machine is not in use, the armrests can be folded back, making the electric micro-tillage weeder for tea gardens easy to load and transport, and convenient to carry. BRIEF DESCRIPTION OF THE DRAWINGS

[0036] Figure 1 This is the front side of the overall structural diagram of the present invention;

[0037] Figure 2 The back side is a schematic diagram of the overall structure of the present invention;

[0038] Figure 3 This is the front side of the overall structural diagram of the present invention from another angle;

[0039] Figure 4 The back side is a schematic diagram of the overall structure of the present invention from another angle;

[0040] Figure 5 This is a schematic diagram of the structure of the rotary tillage and weeding component in the present invention;

[0041] Figure 6 It is a front view of the transmission structure of the present invention;

[0042] Figure 7 A bottom view of the transmission structure of the present invention;

[0043] Figure 8 Schematic cross-section of the slider and guide rail in the transmission of the present invention;

[0044] Figure 9Schematic diagram of the travel transmission assembly of the present invention;

[0045] Figure 10 Schematic diagram of the micro-tillage machine of the present invention when folded.

[0046] Figure 11 Schematic diagram of the blade distribution in the forward-rotating knife group and the reverse-rotating knife group of the micro-tiller in the present invention

[0047] The meanings of the symbols in the accompanying drawings are as follows:

[0048] 1. Rotary tiller motor; 2. Lithium battery; 3. Motor controller; 4. Transmission; 401. Shifting drive shaft; 402. Driven shaft; 403. Upper driving gear; 404. Lower driving gear; 405. Upper driven gear; 406. Lower driven gear; 407. Sleeve; 408. Shift finger pin slide plate; 409. Shift fork; 410. Guide rail; 4101. Positioning ball; 4102. Compression spring; 411. Slider; 4111. Hemispherical groove; 412. Shift handle; 413. Finger pin; 414. Upper arc slot; 415. Lower arc slot;

[0049] 5. Foldable handrail assembly; 501. Handrail; 502. Handrail support; 503. Adjustment handle; 504. Travel speed adjustment handle; 505. Rotary tillage speed adjustment handle; 506. Right steering line; 507. Right steering line handle; 508. Left steering line; 509. Left steering line handle;

[0050] 6. Travel transmission assembly; 601. Travel driving shaft; 602. Left driving block; 603. Right driving block; 604. Left driven block; 605. Right driven block; 606. Left driven shaft; 607. Right driven shaft; 608. Left shift fork; 609. Right shift fork; 610. Left shift fork baffle; 611. Right shift fork baffle; 612. Bearing seat; 613. Left support seat; 614. Left steering Wire core; 615, left wheel hub; 616, left compression spring; 617, right spline; 618, left spline; 619, right steering wire core; 620, right support seat; 621, right wheel hub; 622, right compression spring; 623, left flange; 624, right flange; 625, travel motor; 626, driving sprocket; 627, driven sprocket; 628, transmission chain; 629, dust cover;

[0051] 7. Rotary tillage and weeding assembly; 701. Right reverse shaft sleeve; 702. Forward rotation cutter shaft; 703. Reverse cutter group; 704. Forward rotation cutter group; 705. Transmission mechanism; 706. Reverse worm gear; 707. Forward rotation worm gear; 708. Worm; 709. Left reverse driving gear; 710. Right reverse driving gear; 711. Left reverse driven gear; 712. Right reverse driven gear; 713. Intermediate shaft; 714. Left reverse shaft sleeve; 8. First housing; 9. Second housing. DETAILED DESCRIPTION

[0052] The present embodiment proposes an electric micro-tillage weeder for a tea garden, comprising: a rotary tillage and weeding assembly 7. The rotary tillage and weeding assembly 7 comprises: a forward-rotating knife group 704, a reverse-rotating knife group 703 and a transmission mechanism 705. Both the forward-rotating knife group 704 and the reverse-rotating knife group 703 are composed of a plurality of blades mounted on a spiral line. The forward-rotating knife group 704 and the reverse-rotating knife group 703 are coaxially mounted, and the transmission mechanism 705 is used to drive the forward-rotating knife group 704 and the reverse-rotating knife group 703 to rotate coaxially and in opposite directions. In this way, when the forward-rotating knife group 704 rotates clockwise as a rotary tillage knife group and the reverse-rotating knife group 703 rotates counterclockwise as a weeding knife group, the soil and weeds are discharged to one side, which can quickly remove the weeds, effectively improve the weeding efficiency, and reduce the labor intensity.

[0053] In this embodiment, the rotary tillage and weeding assembly 7 further includes a left reversing sleeve 714, a right reversing sleeve 701, and a forward-rotating blade shaft 702. A forward-rotating blade assembly 704 is provided at each end of the forward-rotating blade shaft 702. The left reversing sleeve 714 and the right reversing sleeve 701 are both sleeved on the forward-rotating blade shaft 702. A reversing blade assembly 703 is provided on each of the left reversing sleeve 714 and the right reversing sleeve 701.

[0054] The transmission mechanism 705 is used to drive the left reversing sleeve 714, the right reversing sleeve 701, and the forward-rotating blade shaft 702 to rotate. The left reversing sleeve 714 and the right reversing sleeve 701 rotate in the same direction, while the forward-rotating blade shaft 702 rotates in the opposite direction relative to the left reversing sleeve 714. Therefore, the reverse blade assembly 703 and the forward-rotating blade assembly 704 rotate in opposite directions due to the reverse rotation of the left reversing sleeve 714 and the right reversing sleeve 701 relative to the forward-rotating blade shaft 702.

[0055] At the same end of the forward-rotating blade shaft 702, the rotation direction of the spiral line of the forward-rotating blade group 704 is opposite to the rotation direction of the spiral line of the reverse-rotating blade group 703. In this way, because the forward-rotating blade group 704 and the reverse-rotating blade group 703 are coaxially arranged in the form of reverse-rotating spirals, during rotary tillage and weeding, the forward-rotating blade group 704 pushes the soil away from the adjacent reverse-rotating blade group 703, and the reverse-rotating blade group 703 pushes the soil toward the adjacent forward-rotating blade group 704, thereby creating a trench and eliminating the manpower and material resources required for trenching.

[0056] In this embodiment, the spiral lines of the forward-rotating blade assemblies 704 at opposite ends of the forward-rotating blade shaft 702 rotate in opposite directions, so as to achieve symmetrical arrangement of the blade assemblies at the opposite ends of the forward-rotating blade shaft 702 .

[0057] This embodiment also includes a first housing 8. The transmission mechanism 705 includes a worm gear unit, a left counter-rotating driving gear 709, a right counter-rotating driving gear 710, a left counter-rotating driven gear 711, a right counter-rotating driven gear 712, and an intermediate shaft 713. The forward-rotating blade shaft 702, the left counter-rotating sleeve 714, the right counter-rotating sleeve 701, and the intermediate shaft 713 are all rotatably mounted on the first housing 8.

[0058] The left reverse driving gear 709 and the right reverse driving gear 710 are both coaxially mounted on and fixedly connected to the intermediate shaft 713. The left reverse driven gear 711 is coaxially mounted on and fixedly connected to the left reverse sleeve 714, while the right reverse driven gear 712 is coaxially mounted on and fixedly connected to the right reverse sleeve 701. The left reverse driving gear 709 and the right reverse driving gear 710 mesh with the left reverse driven gear 711 and the right reverse driven gear 712, respectively. The worm drive unit is used to drive the forward blade shaft 702 and the intermediate shaft 713 to rotate in the same direction.

[0059] Thus, when the worm drive unit drives the forward-rotating cutter shaft 702 and the intermediate shaft 713 to rotate in the same direction, the forward-rotating cutter assembly 704 rotates in the same direction as the forward-rotating cutter shaft 702. The left reverse driving gear 709 and the right reverse driving gear 710 rotate synchronously with the intermediate shaft 713. At the same time, the left reverse driving gear 709 and the right reverse driving gear 710 respectively drive the left reverse driven gear 711 and the right reverse driven gear 712 to rotate in the opposite directions. The left reverse driven gear 711 drives the corresponding reverse cutter assembly to rotate in the same direction via the left reverse shaft sleeve 714, and the right reverse shaft sleeve 701 drives the corresponding reverse cutter assembly to rotate in the same direction via the right reverse driven gear 712. This achieves the opposite rotation of the reverse cutter assembly 703 and the forward-rotating cutter assembly 704.

[0060] In this embodiment, the worm transmission unit includes: a reverse worm gear 706, a forward worm gear 707 and a worm 708. The reverse worm gear 706 is coaxially arranged on the intermediate shaft 713 and fixedly connected, and the forward worm gear 707 is coaxially arranged on the forward cutter shaft 702 and fixedly connected. The worm 708 is rotatably arranged on the first housing 8, and the reverse worm gear 706 and the forward worm gear 707 are both engaged with the worm 708. The worm 708 is used as an active component for the external rotary tillage motor 1. In this way, the rotary tillage motor 1 drives the worm 708 to rotate, so that the worm 708 drives the forward cutter shaft 702 and the intermediate shaft 713 to rotate respectively through the forward worm gear 707 and the reverse worm gear 706. In this embodiment, the forward cutter shaft 702 and the intermediate shaft 713 are arranged in parallel to improve stability.

[0061] This embodiment further includes a second housing 9 and a transmission 4. The transmission includes a shift driving shaft 401, a driven shaft 402, an upper driving gear 403, a lower driving gear 404, an upper driven gear 405, a lower driven gear 406, a shift finger sliding plate 408 and a shift fork 409.

[0062] The speed-changing driving shaft 401 and the driven shaft 402 are both rotatably arranged on the second housing 9 . The speed-changing driving shaft 401 is used to connect to the rotary tillage motor 1 , and the driven shaft 402 is used to drive the worm 708 to rotate.

[0063] The upper driving gear 403 and the lower driving gear 404 are both loosely mounted on the speed change drive shaft 401. The shift finger slide 408 is mounted on the speed change drive shaft 401 and splined with the speed change drive shaft 401. The shift finger slide 408 has finger pins 413 at both ends along the axial direction. The upper driving gear 403 and the lower driving gear 404 are respectively provided with upper and lower arcuate slots 414 and 415 that engage with the corresponding finger pins 413. When the shift finger slide 408 is in the middle position between the upper driving gear 403 and the lower driving gear 404, the speed change driving shaft 401 is idling; when the shift finger slide 408 moves upward, the finger pin 413 at its upper end is inserted into the upper arc-shaped slot 414, so that the speed change driving shaft 401 drives the upper driving gear 403 to rotate through the shift finger slide 408; when the shift finger slide 408 moves downward, the finger pin 413 at its lower end is inserted into the lower arc-shaped slot 415, so that the speed change driving shaft 401 drives the lower driving gear 404 to rotate through the shift finger slide 408.

[0064] The upper driven gear 405 and the lower driven gear 406 are coaxially mounted on the driven shaft 402, and the three rotate synchronously. The upper driven gear 405 is constantly meshed with the upper driving gear 403, and the lower driven gear 406 is constantly meshed with the lower driving gear 404. Thus, by switching the position of the shift finger slide 408, the transmission ratio between the speed change driving shaft 401 and the driven shaft 402 can be adjusted, thereby adjusting the speed of the forward-rotating blade assembly 704 and the reverse-rotating blade assembly 703.

[0065] In this embodiment, the transmission 4 further includes a sleeve 407 , which is sleeved on the driven shaft 402 and located between the upper driven gear 405 and the lower driven gear 406 to ensure that the upper driven gear 405 and the lower driven gear 406 are in a stable relative position.

[0066] The second housing 9 is provided with a guide rail 410, on which a slider 411 is slidably mounted. A shift fork 409 is connected at one end to the shift finger slide 408 and at the other end to the slider 411. A shift handle 412 is used to drive the shift fork 409 to slide along the guide rail 410. The shift finger slide 408 follows the shift fork 409 and slides axially along the speed change drive shaft 401, thereby achieving transmission between the speed change drive shaft 401 and the upper driving gear 403 or the lower driving gear 404.

[0067] The guide rail 410 has a countersunk hole at the bottom, a compression spring 4102 is provided in the countersunk hole, and a positioning ball 4101 is provided on the top of the compression spring 4102. The slider 411 has a plurality of hemispherical grooves 4111 that match the positioning balls 4101.

[0068] Specifically, in this embodiment, three hemispherical grooves 4111 are provided on the slider 411 , and the three hemispherical grooves 4111 correspond to the three gear positions of the shift finger sliding plate 408 respectively.

[0069] This embodiment also includes a travel transmission assembly 6. The travel transmission assembly 6 comprises a travel drive shaft 601, a left wheel hub 615, a right wheel hub 621, a travel motor 625, a driving sprocket 626, a driven sprocket 627, and a transmission chain 628. The travel drive shaft 601 is used to drive the left and right wheel hubs 615 and 621 to rotate synchronously. The driven sprocket 627 is sleeved and fixedly connected to the travel drive shaft 601. The driving sprocket 626 is rotatably mounted on the second housing 9. The driven sprocket 627 and the driving sprocket 626 are connected in a transmission chain 628. The travel motor 625 is used to drive the driving sprocket 626 to rotate.

[0070] Thus, in this embodiment, after the travel motor 625 drives the driving sprocket 626 to rotate, the driving sprocket 626 drives the driven sprocket 627 to rotate through the transmission chain 628, and the driven sprocket 627 drives the left hub 615 and the right hub 621 to rotate through the travel drive shaft 601; thereby, the travel of the electric micro-tillage weeder for the tea garden is realized through the cooperation of the left hub 615, the right hub 621, the forward rotating knife group 704, and the reverse rotating knife group 703.

[0071] In this embodiment, an armrest assembly 5 is also included. The armrest assembly 5 includes a left steering line 508, a right steering line 506, a left steering line handle 509, and a right steering line handle 507. The travel transmission assembly 6 also includes a left active block 602, a right active block 603, a left driven block 604, a right driven block 605, a left driven shaft 606, a right driven shaft 607, a left shift fork 608, a right shift fork 609, a left shift fork baffle 610, a right shift fork baffle 611, a left support seat 613, a left steering line core 614, a left compression spring 616, a right spline 617, a left spline 618, a right steering line core 619, a right support seat 620, and a right compression spring 622.

[0072] The left support seat 613 and the right support seat 620 are both mounted on the second housing 9. The two ends of the travel drive shaft 601 are rotatably connected to the left support seat 613 and the right support seat 620, respectively. The left active block 602 and the right active block 603 are loosely mounted on the two ends of the travel drive shaft 601. The left active block 602 engages with the travel drive shaft 601 via a left spline 618, while the right active block 603 engages with the travel drive shaft 601 via a right spline 617.

[0073] The left driven shaft 606 and the right driven shaft 607 are rotatably set on the left support seat 613 and the right support seat 620 respectively. The left driven block 604 is coaxially set at one end of the left driven shaft 606, and the other end of the left driven shaft 606 is connected to the left hub 615. The right driven block 605 is coaxially set at one end of the right driven shaft 607, and the other end of the right driven shaft 607 is the right hub 621.

[0074] The left compression spring 616 and the right compression spring 622 are both mounted on the driving shaft 601. The free end of the left compression spring 616 is connected to the left driving block 602, while the free end of the right compression spring 622 is connected to the right driving block 603. The left compression spring 616 is used to push the left driving block 602 into engagement with the left driven block 604, while the right compression spring 622 is used to push the right driving block 603 into engagement with the right driven block 605.

[0075] The left shift fork baffle 610 and the right shift fork baffle 611 are mounted on the left support base 613 and the right support base 620, respectively. One end of the left steering cable core 614 is connected to the first end of the left shift fork 608. The other end of the left steering cable core 614 passes through the left shift fork baffle 610 and is connected to the left steering cable handle 509 via the left steering cable 508. The left steering handle 509 is used to pull the left shift fork 608 through the left steering cable 508 and the left steering cable core 614, pushing the left active block 602 to compress the left compression spring 616, thereby separating the left active block 602 from the left driven block 604.

[0076] One end of the right steering cable 506 is connected to the right shift fork 609, and the other end of the right steering cable core 619 passes through the right shift fork baffle 611 and is connected to the right steering cable handle 507 via the right steering cable 506. The right steering cable handle 507 is used to pull the right shift fork 409 through the right steering cable 506 and the right steering cable core 619, pushing the right active block 603 to compress the right compression spring 622, thereby separating the right active block 603 from the right driven block 605.

[0077] That is, the left shift fork 608 performs a lever motion with the left shift fork baffle 610 as a fulcrum, and the right shift fork 609 performs a lever motion with the right shift fork baffle 611 as a fulcrum. Thus, under normal conditions, the left active block 602 engages with the left driven block 604, and the right active block 603 engages with the right driven block 605, so that the driving shaft 601 drives the left and right driven shafts 606 and 607 to rotate synchronously, the left wheel hub 615 rotates synchronously with the left driven shaft 606, and the right wheel hub 621 rotates synchronously with the right driven shaft 607; thus, the driving shaft 601 drives the left and right wheel hubs 615 and 621 to rotate.

[0078] When the left steering handle 509 is squeezed, the left active block 602 and the left driven block 604 are separated, cutting off the power to the left wheel hub 615. At this time, the right wheel hub 621 continues to rotate, achieving a left turn. After the turn is completed, the left steering handle 509 is released, the compressed left compression spring 616 is restored, and the left active block 602 and the left driven block 604 are re-engaged, thereby resuming straight-line driving. The same applies to turning right.

[0079] In the present invention, the armrest assembly 5 further includes: an armrest 501 , an armrest support 502 and an adjustment handle 503 .

[0080] The armrest support 502 is mounted on the second housing 9, the armrest 501 is arranged on the armrest support 502, the armrest 501 and the armrest support 502 are hinged, and the adjustment handle 503 is arranged at the connection between the armrest 501 and the armrest support 502, and the adjustment handle 503 is used to adjust the angle between the armrest 501 and the armrest support 502. Specifically, in this embodiment, the armrest 501 can be adjusted to Figure 10 The angle shown is for easy placement.

[0081] The handrail frame 501 is provided with a driving speed adjustment handle 504 and a rotary tillage speed adjustment handle 505 that are easy to hold, and the left steering line handle 509 and the right steering line handle 507 are respectively arranged on the driving speed adjustment handle 504 and the rotary tillage speed adjustment handle 505.

[0082] Thus, the electric micro-tillage weeder for tea garden proposed by the present invention, when working, first adjusts the armrest 501 so that the height of the driving speed adjustment handle 504 and the rotary tillage speed adjustment handle 505 match the operator, and then locks the adjustment handle 503; then adjusts the gear position of the transmission 4 through the gear position handle 412.

[0083] After the rotary tillage motor 1 is turned on, the rotary tillage motor 1 drives the speed change driving shaft 401 to rotate, and the speed change driving shaft 401 drives the driven shaft 402 to rotate, and the worm 708 rotates synchronously with the driven shaft 402, thereby driving the forward rotation cutter shaft 702 and the intermediate shaft 713 to rotate in the same direction, and the intermediate shaft 713 drives the reverse cutter group 703 to rotate in the opposite direction through the left reverse driving gear 709, the right reverse driving gear 710, the left reverse driven gear 711, the right reverse driven gear 712, the left reverse shaft sleeve 714 and the right reverse shaft sleeve 701; the forward rotation cutter shaft 702 drives the forward rotation cutter group 704 to rotate in the same direction, thereby realizing the reversal of the forward rotation cutter group 704 and the reverse cutter group 703.

[0084] After the travel motor 625 is turned on, the travel motor 625 drives the travel driving shaft 601 to rotate through the driving sprocket 626, the transmission chain 628 and the driven sprocket 627; in the natural state, the left active block 602 is engaged with the left driven block 604, and the right active block 603 is engaged with the right driven block 605, thereby driving the left wheel hub 615 and the right wheel hub 621 to rotate through the travel driving shaft 601, so that the micro-tillage weeder moves as a whole.

[0085] When the electric micro-tillage weeder for tea garden stops working, the travel motor 625 and the rotary tillage motor 1 are first turned off, and the transmission 4 is adjusted to neutral by the gear handle 412 to avoid the risk of the rotary tillage motor 1 accidentally starting the forward rotation blade group 704 and the reverse rotation blade group 703. When not in use, the handrail frame 501 can be folded back by adjusting the handle 505, making the electric micro-tillage weeder for tea garden easy to load and transport and convenient to carry.

[0086] Specifically, in this embodiment, the walking motor 625 and the rotary tillage motor 1 are powered by a lithium battery 2; at the same time, a motor controller 3 is also provided on the second housing 9, and the motor controller 3 is respectively communicated with the driving speed adjustment handle 504, the rotary tillage speed adjustment handle 505, the walking motor 625 and the rotary tillage motor 1. The motor controller 3 is used to control the speed of the walking motor 625 according to the rotation position sensor signal of the driving speed adjustment handle 504, and is used to control the speed of the rotary tillage motor 1 according to the rotation position sensor signal of the rotary tillage speed adjustment handle 505.

[0087] The above are only preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. An electric micro-tillage weeder for tea gardens, characterized in that: include: A rotary tillage and weeding assembly (7); the rotary tillage and weeding assembly (7) comprises: a forward-rotating blade group (704), a reverse-rotating blade group (703) and a transmission mechanism (705); the forward-rotating blade group (704) and the reverse-rotating blade group (703) are both composed of a plurality of blades mounted on a spiral line; the forward-rotating blade group (704) and the reverse-rotating blade group (703) are coaxially mounted, and the transmission mechanism (705) is used to drive the forward-rotating blade group (704) and the reverse-rotating blade group (703) to rotate coaxially and in opposite directions; at the same end of the forward-rotating blade shaft (702), the rotation direction of the spiral line where the forward-rotating blade group (704) is located is opposite to the rotation direction of the spiral line where the reverse-rotating blade group (703) is located; the rotation directions of the spiral lines where the forward-rotating blade groups (704) are located at opposite ends of the forward-rotating blade shaft (702) are opposite; The rotary tillage and weeding assembly (7) further comprises a left reversing shaft sleeve (714), a right reversing shaft sleeve (701) and a forward-rotating cutter shaft (702); forward-rotating cutter groups (704) are respectively provided at both ends of the forward-rotating cutter shaft (702); the left reversing shaft sleeve (714) and the right reversing shaft sleeve (701) are both sleeved on the forward-rotating cutter shaft (702); and reverse-rotating cutter groups (703) are respectively provided on the left reversing shaft sleeve (714) and the right reversing shaft sleeve (701); The transmission mechanism (705) is used to drive the left reversing sleeve (714), the right reversing sleeve (701) and the forward-rotating cutter shaft (702) to rotate, and the left reversing sleeve (714) and the right reversing sleeve (701) rotate in the same direction, and the forward-rotating cutter shaft (702) rotates in the opposite direction relative to the left reversing sleeve (714); It also includes a first housing (8); the transmission mechanism (705) includes: a worm transmission unit, a left reverse driving gear (709), a right reverse driving gear (710), a left reverse driven gear (711), a right reverse driven gear (712) and an intermediate shaft (713); the forward-rotating cutter shaft (702), the left reverse shaft sleeve (714), the right reverse shaft sleeve (701) and the intermediate shaft (713) are all rotatably arranged on the first housing (8); The left reverse driving gear (709) and the right reverse driving gear (710) are both coaxially arranged on the intermediate shaft (713) and fixedly connected; the left reverse driven gear (711) is coaxially arranged on the left reverse shaft sleeve (714) and fixedly connected, and the right reverse driven gear (712) is coaxially arranged on the right reverse shaft sleeve (701) and fixedly connected; the left reverse driving gear (709) and the right reverse driving gear (710) are respectively engaged with the left reverse driven gear (711) and the right reverse driven gear (712); the worm transmission unit is used to drive the forward rotation cutter shaft (702) and the intermediate shaft (713) to rotate in the same direction; The worm transmission unit comprises: a counter-rotating worm wheel (706), a forward-rotating worm wheel (707) and a worm (708); the counter-rotating worm wheel (706) is coaxially arranged on an intermediate shaft (713) and fixedly connected, and the forward-rotating worm wheel (707) is coaxially arranged on a forward-rotating cutter shaft (702) and fixedly connected; the worm (708) is rotatably arranged on a first housing (8), and both the counter-rotating worm wheel (706) and the forward-rotating worm wheel (707) are meshed with the worm (708); the worm (708) serves as an active component for externally connecting to a rotary tillage motor (1); It also includes a second housing (9) and a transmission (4), wherein the transmission includes: a speed change driving shaft (401), a driven shaft (402), an upper driving gear (403), a lower driving gear (404), an upper driven gear (405), a lower driven gear (406), a shift finger sliding plate (408) and a shift fork (409); The speed-changing driving shaft (401) and the driven shaft (402) are both rotatably arranged on the second housing (9); the speed-changing driving shaft (401) is used to connect to the rotary tillage motor (1), and the driven shaft (402) is used to drive the worm (708) to rotate; The upper driving gear (403) and the lower driving gear (404) are both sleeved on the speed change driving shaft (401); the upper driven gear (405) and the lower driven gear (406) are both coaxially sleeved on the driven shaft (402), and the three rotate synchronously; the upper driven gear (405) is constantly meshed with the upper driving gear (403), and the lower driven gear (406) is constantly meshed with the lower driving gear (404); The shift finger pin slide plate (408) is sleeved on the speed change driving shaft (401) and is splined with the speed change driving shaft (401); a guide rail (410) is provided on the second housing (9), and a slider (411) is slidably provided on the guide rail (410); one end of the shift fork (409) is connected to the shift finger pin slide plate (408), and the other end is connected to the slider (411); the gear handle (412) is used to drive the shift fork (409) to slide along the guide rail (410), and the shift finger pin slide plate (408) follows the shift fork (409) to slide axially along the speed change driving shaft (401), thereby realizing transmission between the speed change driving shaft (401) and the upper driving gear (403) or the lower driving gear (404); A countersunk hole is provided at the bottom of the guide rail (410), a compression spring (4102) is provided in the countersunk hole, and a positioning ball (4101) is provided on the top of the compression spring (4102); a plurality of hemispherical grooves (4111) matching the positioning balls (4101) are provided on the slider (411); The vehicle further comprises a travel transmission assembly (6); the travel transmission assembly (6) comprises: a travel driving shaft (601), a left wheel hub (615), a right wheel hub (621), a travel motor (625), a driving sprocket (626), a driven sprocket (627) and a transmission chain (628); the travel driving shaft (601) is used to drive the left wheel hub (615) and the right wheel hub (621) to rotate synchronously; the driven sprocket (627) is sleeved on the travel driving shaft (601) and fixedly connected; the driving sprocket (626) is rotatably arranged on the second housing (9); the driven sprocket (627) and the driving sprocket (626) are connected to each other by a transmission chain (628); the travel motor (625) is used to drive the driving sprocket (626) to rotate; It also includes a handrail frame assembly (5); the handrail frame assembly (5) includes: a left steering line (508), a right steering line (506), a left steering line handle (509) and a right steering line handle (507); the travel transmission assembly (6) also includes: a left active block (602), a right active block (603), a left driven block (604), a right driven block (605), a left driven shaft (606), a right driven shaft (607), a left shift fork (608), a right shift fork (609), a left shift fork baffle (610), a right shift fork baffle (611), a left support seat (613), a left steering line core (614), a left compression spring (616), a right spline (617), a left spline (618), a right steering line core (619), a right support seat (620) and a right compression spring (622); The left support seat (613) and the right support seat (620) are both arranged on the second housing (9); the two ends of the walking active shaft (601) are respectively rotatably connected to the left support seat (613) and the right support seat (620); the left active block (602) and the right active block (603) are respectively loosely sleeved on the two ends of the walking active shaft (601); the left active block (602) cooperates with the walking active shaft (601) through the left spline (618), and the right active block (603) cooperates with the walking active shaft (601) through the right spline (617); The left driven shaft (606) and the right driven shaft (607) are rotatably arranged on the left support seat (613) and the right support seat (620) respectively; the left driven block (604) is coaxially arranged on one end of the left driven shaft (606), and the other end of the left driven shaft (606) is connected to the left wheel hub (615); the right driven block (605) is coaxially arranged on one end of the right driven shaft (607), and the other end of the right driven shaft (607) is connected to the right wheel hub (621); The left compression spring (616) and the right compression spring (622) are both sleeved on the walking active shaft (601), the free end of the left compression spring (616) is connected to the left active block (602), and the free end of the right compression spring (622) is connected to the right active block (603); the left compression spring (616) is used to push the left active block (602) to engage with the left driven block (604), and the right compression spring (622) is used to push the right active block (603) to engage with the right driven block (605); The left shift fork baffle (610) and the right shift fork baffle (611) are respectively arranged on the left support seat (613) and the right support seat (620); one end of the left steering wire core (614) is connected to the first end of the left shift fork (608), and the other end of the left steering wire core (614) passes through the left shift fork baffle (610) and is connected to the left steering wire handle (509) via the left steering wire (508); the left steering wire handle (509) is used to pull the left shift fork (608) through the left steering wire (508) and the left steering wire core (614) to push the left active block (602) to compress the left compression spring (616), so that the left active block (602) is separated from the left driven block (604); One end of the right steering line (506) is connected to the right shift fork (609), and the other end of the right steering line core (619) passes through the right shift fork baffle (611) and is connected to the right steering line handle (507) through the right steering line (506); the right steering line handle (507) is used to pull the right shift fork (609) through the right steering line (506) and the right steering line core (619) to push the right active block (603) to compress the right compression spring (622), so that the right active block (603) is separated from the right driven block (605); The handrail assembly (5) further comprises: a handrail (501), a handrail support (502) and an adjustment handle (503); The handrail support (502) is installed on the second shell (9), the handrail (501) is arranged on the handrail support (502), the handrail (501) and the handrail support (502) are hinged, and the adjustment handle (503) is arranged at the connection between the handrail (501) and the handrail support (502), and the adjustment handle (503) is used to adjust the angle between the handrail (501) and the handrail support (502); A travel speed adjustment handle (504) and a rotary tillage speed adjustment handle (505) that are easy to hold are provided on the handrail frame (501), and a left steering line handle (509) and a right steering line handle (507) are respectively provided on the travel speed adjustment handle (504) and the rotary tillage speed adjustment handle (505).

Images