Improved light mini-tiller gearbox
By introducing multiple sets of double gears and shift shafts into the gearbox of the light-duty tiller, combined with bevel gear meshing and linkage mechanism, the problem of limited gears in existing gearboxes has been solved, enabling multi-gear switching and flexible steering, thus improving the adaptability and working efficiency of the equipment.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-04-09
- Publication Date
- 2026-03-17
AI Technical Summary
Existing light-duty tillers have few gears and functions, making them unsuitable for complex terrain conditions and inconvenient to use.
An improved gearbox for a lightweight micro-tiller was designed, which uses multiple sets of double gears and shift shafts to achieve multi-gear switching. Combined with bevel gear meshing and linkage mechanism, it improves transmission efficiency and flexible steering control.
It achieves multi-gear switching, improves transmission efficiency and adaptability, can adapt to complex land conditions and operational needs, and enhances operational flexibility and work efficiency.
Smart Images
Figure CN224003111U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of agricultural machinery technology, and in particular to an improved light-duty micro-tiller gearbox. Background Technology
[0002] A mini tiller is a small agricultural tool mainly used for preparing soil, weeding, and leveling small areas of land.
[0003] In order to transmit the power output of the mini-tiller to the wheels and tillage equipment, a gearbox is needed. A gearbox is a mechanical device used to switch and adjust the engine's output torque and speed. Existing light mini-tillers have few gears and functions, are inconvenient to use, and cannot adapt well to complex land conditions.
[0004] Therefore, there is an urgent need to provide an improved gearbox for lightweight tillers to solve the above problems. Utility Model Content
[0005] The technical problem to be solved by this utility model is to overcome the shortcomings of the prior art and provide an improved light-duty tiller gearbox.
[0006] To solve the above-mentioned technical problems, the present invention provides an improved light-duty tiller gearbox, comprising a gearbox body, a first shift shaft slidably connected inside the gearbox body, a paddle fixedly connected to the outside of the first shift shaft and slidably connected to the gearbox body, a second shift shaft slidably connected inside the gearbox body, a baffle fixedly connected to the outside of the second shift shaft and slidably connected to the gearbox body, a third shift shaft slidably connected inside the gearbox body, a slide plate fixedly connected to the outside of the third shift shaft and slidably connected to the gearbox body, and two steering shafts connected inside the gearbox body.
[0007] The gearbox body is rotatably connected to a first shaft that is fixedly connected to the engine output end. A transmission mechanism is fixedly connected to the outside of the first shaft. The gearbox body is rotatably connected to a third shaft. A sliding mechanism is slidably connected to the outside of the third shaft. The gearbox body is rotatably connected to a fifth shaft. A rotating mechanism is fixedly connected to the outside of the fifth shaft. The gearbox body is rotatably connected to a seventh shaft. A linkage mechanism is fixedly connected to the outside of the seventh shaft. The gearbox body is rotatably connected to a ninth shaft. A moving mechanism is fixedly connected to the outside of the ninth shaft.
[0008] The present invention is further configured such that: the transmission mechanism includes a first bevel gear disk fixedly connected to the outside of the first shaft; a second shaft is rotatably connected inside the gearbox body; a second bevel gear disk meshing with the first bevel gear disk is fixedly connected to the outside of the second shaft; and a second gear disk is fixedly connected to the outside of the second shaft.
[0009] Through the above technical solution, the function of the transmission mechanism is to perform mechanical transmission. When the engine starts, it drives the output end to rotate, which in turn drives the first shaft to rotate, which in turn drives the first bevel gear to rotate, which in turn drives the second bevel gear to rotate, which in turn drives the second shaft to rotate, which in turn drives the second gear to rotate. Through a series of mechanical transmissions, the effect of rotating the second gear is achieved.
[0010] The present invention is further configured such that: the sliding mechanism includes a third toothed disc fixedly connected to the outside of the third shaft, the third toothed disc meshing with the second toothed disc, the third shaft passing through a paddle, a third fourth toothed disc rotatably connected to the third shaft on one side of the paddle, a third fifth toothed disc rotatably connected to the third shaft on the other side of the paddle, the third shaft passing through a baffle, a third second toothed disc rotatably connected to the third shaft on one side of the baffle, and a third third toothed disc rotatably connected to the third shaft on the other side of the baffle.
[0011] Through the above technical solution, the sliding mechanism functions to perform gear shifting. The third and fourth gear discs and the third and fifth gear discs are double gears, which mesh with the fourth and third gear discs respectively through the first shift shaft to form two gears. Shifting the first shift shaft moves the paddle, which in turn moves the third and fourth gear discs, forming two gears. In the first gear, the third shaft rotates, which in turn rotates the third and fourth gear discs, which in turn rotates the fourth shaft. In the second gear, the third shaft rotates, which in turn rotates the third and fifth gear discs, which in turn rotates the fourth and fourth gear discs, which in turn rotates the fourth shaft. On the other hand, the third and second gear discs and the third and third gear discs are double gears, which are shifted through the second shift shaft... The gears engage with the 9th and 92nd gear discs respectively to form two gear positions. Activating the second shift shaft moves the baffle, which in turn moves the 3rd and 32nd gear discs, creating two gear positions. In the first gear position, the 2nd gear disc rotates, causing the 3rd gear disc to rotate, which in turn rotates the 3rd shaft, the 32nd gear disc, the 9th gear disc, and the 11th gear disc. In the second gear position, the 2nd gear disc rotates, causing the 3rd gear disc to rotate, which in turn rotates the 3rd shaft, the 3rd gear disc, the 92nd gear disc, the 9th shaft, the 91st gear disc, and the 11th gear disc. This series of mechanical transmissions achieves the gear shifting effect.
[0012] The present invention is further configured such that: a fourth shaft is rotatably connected inside the gearbox body, the fourth shaft passes through a slide plate, a fourth first gear plate is rotatably connected to one side of the slide plate and slidably connected to the fourth shaft, a fourth second gear plate is rotatably connected to the other side of the slide plate and slidably connected to the fourth shaft, a fourth third gear plate is fixedly connected to the outside of the fourth shaft, and a fourth fourth gear plate is fixedly connected to the outside of the fourth shaft.
[0013] Through the above technical solution, the function of the fourth shaft is to further perform gear shifting. The fourth and fourth second gears are double gears. By shifting the third shift shaft, they mesh with the fifth, sixth, and sixth third gears respectively, forming three gears. Shifting the third shift shaft drives the sliding plate to move, which in turn drives the fourth and fourth second gears to move, forming three gears. In the first gear, the fourth shaft rotates, driving the fourth and fourth second gears to rotate, which in turn drives the sixth shaft to rotate. In the second gear, the fourth shaft rotates, driving the fourth and sixth first gears to rotate, which in turn drives the sixth shaft to rotate. In the third gear, the fourth shaft rotates, driving the fourth and fourth first gears to rotate, which in turn drives the fifth and fifth shafts to rotate, driving the fifth and sixth second gears to rotate, which in turn drives the sixth shaft to rotate. Through a series of mechanical transmissions, the gear shifting operation is further performed, increasing the number of gears, improving functionality, facilitating use, and adapting well to complex land conditions.
[0014] The present invention is further configured such that: the rotating mechanism includes a fifth first gear disk fixedly connected to the outside of the fifth shaft, a fifth second gear disk fixedly connected to the outside of the fifth shaft, a sixth shaft rotatably connected inside the gearbox body, a sixth first gear disk fixedly connected to the outside of the sixth shaft, a sixth second gear disk fixedly connected to the outside of the sixth shaft, and a sixth third gear disk fixedly connected to the outside of the sixth shaft.
[0015] Through the above technical solution, the function of the rotating mechanism is to carry out mechanical transmission. The fourth and fourth gears are double gears. By shifting the third shift shaft, they mesh with the fifth, sixth, and sixth gears respectively to form three gears. The fourth shaft rotates, and through the three gears, it drives the sixth shaft to rotate, which in turn drives the sixth gear to rotate. The effect of rotating the sixth gear is achieved through a series of mechanical transmissions, which is convenient, fast, simple and practical.
[0016] The present invention is further configured such that: the linkage mechanism includes a seventh-first gear disk connected to the outside of the seventh shaft, a seventh-second gear disk connected to the outside of the seventh shaft, a seventh-third gear disk connected to the outside of the seventh shaft, the seventh-first gear disk and the seventh-third gear disk being respectively connected to two steering shafts, an eighth shaft sleeve being rotatably connected inside the gearbox body, an eighth-first shaft being rotatably connected to one side of the eighth shaft sleeve, an eighth-second shaft being rotatably connected to the other side of the eighth shaft sleeve, an eighth-first gear disk being fixedly connected to the outside of the eighth-first shaft, and an eighth-second gear disk being fixedly connected to the outside of the eighth-second shaft.
[0017] Through the above technical solution, the linkage mechanism drives the travel output shaft to rotate through mechanical linkage. The 71st and 73rd gears are steering gears. By shifting the steering shaft, they engage or disengage with the 72nd gear, respectively, which can control the rotation or stop rotation of the 81st and 82nd shafts. The 81st and 82nd shafts are both travel output shafts. In the first gear, the 62nd gear rotates, which drives the 72nd gear, which in turn drives the 71st gear, which in turn drives the 81st gear, which in turn drives the 81st shaft. In the second gear, the 62nd gear rotates, which drives the 72nd gear, which in turn drives the 73rd gear, which in turn drives the 82nd gear, which in turn drives the 82nd shaft. By shifting gears, the travel output shaft can be changed, which is convenient, quick, simple and practical.
[0018] The present invention is further configured such that: the moving mechanism includes a ninth eleventh gear disk fixedly connected to the outside of the ninth shaft; a ninth twentieth gear disk fixedly connected to the outside of the ninth shaft; a tenth shaft rotatably connected inside the gearbox body; an eleventh gear disk meshing with the ninth eleventh gear disk fixedly connected to the outside of the tenth shaft; a twelfth bevel gear disk fixedly connected to the outside of the tenth shaft; an eleventh shaft rotatably connected inside the gearbox body; an eleventh bevel gear disk meshing with the twelfth bevel gear disk fixedly connected to the outside of the eleventh shaft; an eleventh twelfth bevel gear disk fixedly connected to the outside of the eleventh shaft; and a twelfth shaft rotatably connected inside the gearbox body; a twelfth bevel gear disk meshing with the eleventh twelfth bevel gear disk fixedly connected to the outside of the twelfth shaft.
[0019] Through the above technical solution, the function of the moving mechanism is to drive the power output shaft to rotate, the eleventh gear plate to rotate, which in turn drives the tenth shaft to rotate, the twelfth bevel gear plate to rotate, the eleventh bevel gear plate to rotate, the eleventh shaft to rotate, the eleventh and twelfth bevel gear plates to rotate, and the twelfth bevel gear plate to rotate, which in turn drives the twelfth shaft to rotate. The twelfth shaft is the power output shaft. The rotation of the power output shaft is achieved through a series of mechanical transmissions.
[0020] The beneficial effects of this utility model are as follows:
[0021] 1. This utility model achieves multi-gear switching by setting multiple sets of double gears and shift shafts, thereby improving transmission efficiency and adapting to different operating needs; the transmission mechanism adopts bevel gear meshing to ensure smooth and reliable power transmission and improve overall transmission efficiency; the linkage mechanism is connected to the walking output shaft through the steering gear to achieve flexible steering control and improve the maneuverability and applicability of the micro-tiller.
[0022] 2. This utility model achieves diversified drive of the power output shaft through multi-stage gear transmission in the moving mechanism to meet different operation needs; the compact layout of each shaft and gear in the gearbox body realizes efficient power transmission and shifting operation, improving overall work efficiency; the multi-gear design and flexible steering control enable the micro-tiller to adapt to complex land conditions and operation needs, improving practicality and convenience. Attached Figure Description
[0023] Figure 1 This is a first-view structural diagram of the present invention;
[0024] Figure 2 This is a second-view sectional view of the present invention;
[0025] Figure 3 This is a third-view sectional view of the present invention;
[0026] Figure 4 This is a cross-sectional view of the sliding mechanism.
[0027] Figure 5 This is a sectional view of the rotating mechanism.
[0028] Figure 6 This is a structural sectional view of the linkage mechanism;
[0029] Figure 7 This is a structural cross-sectional view of the moving mechanism.
[0030] In the diagram: 1. Gearbox body; 2. First shift shaft; 3. Paddle shifter; 4. Second shift shaft; 5. Shift pad; 6. Third shift shaft; 7. Sliding plate; 8. Steering shaft; 9. First shaft; 10. Transmission mechanism; 1001. First bevel gear plate; 1002. Second shaft; 1003. Second bevel gear plate; 1004. Second bevel gear plate; 11. Third shaft; 12. Sliding mechanism; 1201. Third bevel gear plate; 1202. Third and fourth bevel gear plate; 1203. Third and fifth bevel gear plate; 1204. Third and second bevel gear plate; 1205. Third and third bevel gear plate; 1206. Fourth shaft; 1207. Fourth bevel gear plate; 1208. Fourth and second bevel gear plate; 1209. Fourth and third bevel gear plate; 1210. Fourth and fourth bevel gear plate; 13. Fifth shaft; 14. Rotating mechanism; 1401. Fifth bevel gear plate; 1402. Fifth bevel gear plate. Disc; 1403, Sixth Axis; 1404, Sixth Gear Disc; 1405, Sixth Gear Disc; 1406, Sixth Gear Disc; 15, Seventh Axis; 16, Linkage Mechanism; 1601, Seventh Gear Disc; 1602, Seventh Gear Disc; 1603, Seventh Gear Disc; 1604, Eighth Shaft Sleeve; 1605, Eighth Axis; 1606, Eighth Axis; 1607, Eighth Gear Disc; 1608, Eighth Gear Disc; 17, Ninth Axis; 18, Moving Mechanism; 1801, Ninth Gear Disc; 1802, Ninth Gear Disc; 1803, Tenth Axis; 1804, Eleventh Gear Disc; 1805, Twelfth Bevel Gear Disc; 1806, Eleventh Axis; 1807, Eleventh Bevel Gear Disc; 1808, Eleventh Bevel Gear Disc; 1809, Twelfth Axis; 1810, Twelfth Bevel Gear Disc. Detailed Implementation
[0031] The preferred embodiments of the present invention will now be described in detail with reference to the accompanying drawings, so that the advantages and features of the present invention can be more easily understood by those skilled in the art, thereby making a clearer and more definite definition of the scope of protection of the present invention.
[0032] Please see Figures 1-7 An improved light-duty tiller gearbox according to this embodiment includes a gearbox body 1, a first shift shaft 2 slidably connected inside the gearbox body 1, a paddle 3 slidably connected to the outside of the first shift shaft 2, a second shift shaft 4 slidably connected inside the gearbox body 1, a baffle 5 slidably connected to the outside of the second shift shaft 4, a third shift shaft 6 slidably connected inside the gearbox body 1, a slide 7 slidably connected to the outside of the third shift shaft 6, and two steering shafts 8 connected inside the gearbox body 1.
[0033] like Figures 1-4As shown, a first shaft 9, which is fixedly connected to the engine output end, is rotatably connected inside the gearbox body 1. A transmission mechanism 10 is fixedly connected to the outside of the first shaft 9. The transmission mechanism 10 includes a first bevel gear disk 1001 fixedly connected to the outside of the first shaft 9. A second shaft 1002 is rotatably connected inside the gearbox body 1. A second bevel gear disk 1003, which meshes with the first bevel gear disk 1001, is fixedly connected to the outside of the second shaft 1002. A second gear disk 1004 is fixedly connected to the outside of the second shaft 1002. The function of the transmission mechanism 10 is to perform mechanical transmission. When the engine starts, it drives the output end to rotate, which drives the first shaft 9 to rotate, which drives the first bevel gear disk 1001 to rotate, which drives the second bevel gear disk 1003 to rotate, which drives the second shaft 1002 to rotate, which drives the second gear disk 1004 to rotate. The effect of rotating the second gear disk 1004 is achieved through a series of mechanical transmissions.
[0034] like Figures 3-4As shown, a third shaft 11 is rotatably connected inside the gearbox body 1, and a sliding mechanism 12 is slidably connected to the outside of the third shaft 11. The sliding mechanism 12 includes a third first gear disk 1201 fixedly connected to the outside of the third shaft 11. The third first gear disk 1201 meshes with a second first gear disk 1004. The third shaft 11 passes through a paddle 3. A third fourth gear disk 1202 rotatably connected to the third shaft 11 is slidably connected to one side of the paddle 3, and a third fifth gear disk 1203 rotatably connected to the third shaft 11 is slidably connected to the other side of the paddle 3. The third shaft 11 passes through a baffle 5, and a baffle 5 rotatably connected to the third shaft 11 is slidably connected to one side of the baffle 5. The third gear 1204 is rotatably connected to the other side of the baffle 5, and the third gear 1205 is slidably connected to the third shaft 11. The sliding mechanism 12 is used for gear shifting. The third and fourth gears 1202 and the third and fifth gears 1203 are double gears. They are engaged with the fourth and fourth gears 1209 and 1210 respectively by the first shift shaft 2 to form two gears. Shifting the first shift shaft 2 moves the paddle 3, which in turn moves the third and fourth gears 1202 and 1203 to form two gears. In the first gear, the third shaft 11 rotates, causing the third and fourth gears 1202 to rotate. The first gear rotates the fourth third gear 1209, which in turn rotates the fourth shaft 1206, creating the second gear. The second gear rotates the third shaft 11, which in turn rotates the third fifth gear 1203, which in turn rotates the fourth fourth gear 1210, which in turn rotates the fourth shaft 1206. On the other hand, the third second gear 1204 and the third third gear 1205 are a double gear, which, through the second shift shaft 4, engage with the ninth first gear 1801 and the ninth second gear 1802 respectively to form two gears. Shifting the second shift shaft 4 moves the baffle 5, which in turn moves the third third gear 1205 and the third second gear 1204, creating two gears in the first gear position. The rotation of the second gear 1004 drives the rotation of the third gear 1201, which in turn drives the rotation of the third shaft 11, which in turn drives the rotation of the third second gear 1204, the ninth first gear 1801, and the eleventh gear 1804. In the second gear position, the rotation of the second gear 1004 drives the rotation of the third gear 1201, which in turn drives the rotation of the third shaft 11, the third third gear 1205, the ninth second gear 1802, the ninth shaft 17, the ninth first gear 1801, and the eleventh gear 1804. This series of mechanical transmissions achieves the gear shifting effect.
[0035] like Figures 4-5As shown, a fourth shaft 1206 is rotatably connected inside the gearbox body 1. The fourth shaft 1206 passes through a slide plate 7. A fourth first gear plate 1207, which is slidably connected to the fourth shaft 1206, is rotatably connected to one side of the slide plate 7. A fourth second gear plate 1208, which is slidably connected to the fourth shaft 1206, is rotatably connected to the other side of the slide plate 7. A fourth third gear plate 1209 and a fourth fourth gear plate 12010 are fixedly connected to the outside of the fourth shaft 1206. The function of the fourth shaft 1206 is to further perform gear shifting. The fourth first gear plate 1207 and the fourth second gear plate 1208 are double gears. By shifting the third shift shaft 6, they mesh with the fifth first gear plate 1401, the sixth first gear plate 1404, and the sixth third gear plate 1406 respectively, forming three gears. Shifting the third shift shaft 6 moves the slide plate 7, which in turn moves the fourth first gear plate 1209. 7. The fourth gear 1208 moves to form three gears. In the first gear, the fourth shaft 1206 rotates, driving the fourth gear 1208 to rotate, which in turn drives the sixth gear 1406 to rotate, and the sixth shaft 1403 to rotate. In the second gear, the fourth shaft 1206 rotates, driving the fourth gear 1207 to rotate, which in turn drives the sixth gear 1404 to rotate, and the sixth shaft 1403 to rotate. In the third gear, the fourth shaft 1206 rotates, driving the fourth gear 1207 to rotate, which in turn drives the fifth gear 1401 to rotate, which in turn drives the fifth shaft 13 to rotate, which in turn drives the fifth gear 1402 to rotate, which in turn drives the sixth gear 1404 to rotate, and the sixth shaft 1403 to rotate. Through a series of mechanical transmissions, the gear shifting operation is further performed, increasing the number of gears, improving functionality, facilitating use, and adapting well to complex land conditions.
[0036] like Figures 4-5 As shown, a fifth shaft 13 is rotatably connected inside the gearbox body 1. A rotating mechanism 14 is fixedly connected to the outside of the fifth shaft 13. The rotating mechanism 14 includes a fifth first gear 1401 fixedly connected to the outside of the fifth shaft 13, a fifth second gear 1402 fixedly connected to the outside of the fifth shaft 13, a sixth shaft 1403 rotatably connected inside the gearbox body 1, a sixth first gear 1404 fixedly connected to the outside of the sixth shaft 1403, a sixth second gear 1405 fixedly connected to the outside of the sixth shaft 1403, and a sixth... The three-tooth disc 1406 and the rotating mechanism 14 are used for mechanical transmission. The fourth first gear disc 1207 and the fourth second gear disc 1208 are double gears. By shifting the third shift shaft 6, they mesh with the fifth first gear disc 1401, the sixth first gear disc 1404, and the sixth third gear disc 1406 respectively, forming three gears. The rotation of the fourth shaft 1206 drives the sixth shaft 1403 to rotate through the three gears, which in turn drives the sixth second gear disc 1405 to rotate. The rotation of the sixth second gear disc 1405 is achieved through a series of mechanical transmissions, which is convenient, fast, simple and practical.
[0037] like Figures 5-6As shown, a seventh shaft 15 is rotatably connected inside the gearbox body 1. A linkage mechanism 16 is fixedly connected to the outside of the seventh shaft 15. The linkage mechanism 16 includes a seventh first gear 1601 connected to the outside of the seventh shaft 15, a seventh second gear 1602 connected to the outside of the seventh shaft 15, and a seventh third gear 1603 connected to the outside of the seventh shaft 15. The seventh first gear 1601 and the seventh third gear 1603 are respectively connected to two steering shafts 8. An eighth bushing 1604 is rotatably connected inside the gearbox body 1. An eighth first shaft 1605 is rotatably connected to one side of the eighth bushing 1604, and an eighth second shaft 1606 is rotatably connected to the other side of the eighth bushing 1604. An eighth first gear 1607 is fixedly connected to the outside of the eighth first shaft 1605, and an eighth second gear 1608 is fixedly connected to the outside of the eighth second shaft 1606. The function of the linkage mechanism 16 is to drive the gearbox through mechanical linkage. The travel output shaft rotates, and the seventh gear 1601 and the seventh gear 1603 are steering gears. By shifting the steering shaft 8, they can engage or disengage with the seventh gear 1602, respectively, which can control the rotation or stop of the eighth shaft 1605 and the eighth shaft 1606. The eighth shaft 1605 and the eighth shaft 1606 are both travel output shafts. In the first gear, the sixth gear 1405 rotates, which drives the seventh gear 1602 to rotate, which drives the seventh gear 1601 to rotate, which drives the eighth gear 1607 to rotate, which drives the eighth shaft 1605 to rotate. In the second gear, the sixth gear 1405 rotates, which drives the seventh gear 1602 to rotate, which drives the seventh gear 1603 to rotate, which drives the eighth gear 1608 to rotate, which drives the eighth shaft 1606 to rotate. The travel output shaft can be changed by shifting gears, which is convenient, quick and simple to use.
[0038] like Figures 6-7As shown, a ninth shaft 17 is rotatably connected inside the gearbox body 1. A moving mechanism 18 is fixedly connected to the outside of the ninth shaft 17. The moving mechanism 18 includes a ninth gear disk 1801 fixedly connected to the outside of the ninth shaft 17, a ninth gear disk 1802 fixedly connected to the outside of the ninth shaft 17, a tenth shaft 1803 rotatably connected inside the gearbox body 1, an eleventh gear disk 1804 fixedly connected to the outside of the tenth shaft 1803 and meshing with the ninth gear disk 1801, a twelfth bevel gear disk 1805 fixedly connected to the outside of the tenth shaft 1803, an eleventh shaft 1806 rotatably connected inside the gearbox body 1, an eleventh bevel gear disk 1807 fixedly connected to the outside of the eleventh shaft 1806 and meshing with the twelfth bevel gear disk 1805, and an eleventh shaft 1806 fixedly connected to the outside of the eleventh shaft 1806. The gearbox body 1 has an eleventh and twelfth bevel gear 1808 fixedly connected to it. The twelfth shaft 1809 is rotatably connected inside the gearbox body 1. The twelfth shaft 1809 is externally fixedly connected to a twelfth bevel gear 1810 that meshes with the eleventh and twelfth bevel gear 1808. The function of the moving mechanism 18 is to drive the power output shaft to rotate. The rotation of the eleventh bevel gear 1804 drives the tenth shaft 1803 to rotate, drives the twelfth bevel gear 1805 to rotate, drives the eleventh bevel gear 1807 to rotate, drives the eleventh shaft 1806 to rotate, drives the eleventh and twelfth bevel gear 1808 to rotate, drives the twelfth bevel gear 1810 to rotate, and drives the twelfth shaft 1809 to rotate. The twelfth shaft 1809 is the power output shaft. The rotation of the power output shaft is achieved through a series of mechanical transmissions.
[0039] In use, the gearbox body 1 has a first shaft 9 fixedly connected to the engine output end. When the first shaft 9 rotates, it drives the second shaft 1002 to rotate via the first bevel gear 1001 and the second bevel gear 1003. The second gear 1004 on the second shaft 1002 meshes with the third gear 1201 on the third shaft 11, realizing power transmission to the third shaft 11. Using the double gear of the third fourth gear 1202 and the third fifth gear 1203, the first shift shaft 2 moves the paddle 3 to make the double gear mesh with the fourth third gear 1209 and the fourth fourth gear 1210 respectively, forming two gears and controlling the fourth gear. Shaft 1206 rotates, and the fourth shaft 1206 passes through slide 7. Slide 7 has a double gear on both sides, a fourth first gear disc 1207 and a fourth second gear disc 1208. The third shift shaft 6 moves slide 7 to make the double gear mesh with the fifth first gear disc 1401, the sixth first gear disc 1404, and the sixth third gear disc 1406 respectively, forming three gear positions to control the rotation of the fifth shaft 13 or the sixth shaft 1403. The fifth shaft 13 is linked to the sixth first gear disc 1404 through the fifth first gear disc 1401 and the fifth second gear disc 1402. The sixth shaft 1403 has a sixth second gear disc 1405, which, when rotating, drives the seventh first gear disc 1405 through the seventh second gear disc 1602. When disk 1601 or the seventh third gear disk 1603 rotates, the seventh first gear disk 1601 and the seventh third gear disk 1603 are respectively connected to two steering shafts 8, controlling the rotation of the eighth first shaft 1605 or the eighth second shaft 1606 to achieve travel output. When the second first gear disk 1004 on the second shaft 1002 rotates, it can also drive the third shaft 11 to rotate through the third first gear disk 1201. The third shaft 11 is also equipped with a double gear of the third second gear disk 1204 and the third third gear disk 1205. The second shift shaft 4 moves the baffle 5 to make the double gear mesh with the ninth first gear disk 1801 and the ninth second gear disk 1802 respectively, forming two gears; the ninth The ninth gear 1801 on shaft 17 meshes with the eleventh gear 1804 on the tenth shaft 1803, driving the twelfth bevel gear 1805 to rotate. This, in turn, drives the twelfth bevel gear 1810 to rotate through the eleventh bevel gear 1807 and the eleventh bevel gear 1808, ultimately driving the twelfth shaft 1809 as the power output shaft. The main body 1 of this gearbox achieves multi-gear switching and power distribution through the cooperation of multiple sets of double gears and multiple shift shafts, adapting to different operational needs. It realizes multi-gear adjustment and travel direction control, enhances the adaptability of the equipment under complex land conditions, and improves operational flexibility and work efficiency.
[0040] The above description is merely an embodiment of this utility model and does not limit the patent scope of this utility model. Any equivalent structural or procedural transformations made based on the description and drawings of this utility model, or direct or indirect applications in other related technical fields, are similarly included within the patent protection scope of this utility model.
Claims
1. An improved gearbox for light mini-tiller, comprising a gearbox body (1), characterized in that: The gearbox body (1) is slidably connected with a first shift shaft (2), the outer part of the first shift shaft (2) is fixedly connected with a shift piece (3) slidably connected with the gearbox body (1), the gearbox body (1) is slidably connected with a second shift shaft (4), the outer part of the second shift shaft (4) is fixedly connected with a shift piece (5) slidably connected with the gearbox body (1), the gearbox body (1) is slidably connected with a third shift shaft (6), the outer part of the third shift shaft (6) is fixedly connected with a shift piece (7) slidably connected with the gearbox body (1), the gearbox body (1) is connected with two steering shafts (8); The gearbox body (1) is rotatably connected with a first shaft (9) fixedly connected with the output end of the engine, the outer part of the first shaft (9) is fixedly connected with a transmission mechanism (10), the gearbox body (1) is rotatably connected with a third shaft (11), the outer part of the third shaft (11) is slidably connected with a sliding mechanism (12), the gearbox body (1) is rotatably connected with a fifth shaft (13), the outer part of the fifth shaft (13) is fixedly connected with a rotating mechanism (14), the gearbox body (1) is rotatably connected with a seventh shaft (15), the outer part of the seventh shaft (15) is fixedly connected with a linkage mechanism (16), the gearbox body (1) is rotatably connected with a ninth shaft (17), and the outer part of the ninth shaft (17) is fixedly connected with a moving mechanism (18).
2. The improved gearbox of a light mini-cultivator according to claim 1, characterized in that: The transmission mechanism (10) comprises a first one cone gear disc (1001) fixedly connected to the outer part of the first shaft (9), the gearbox body (1) is rotatably connected with a second shaft (1002), the outer part of the second shaft (1002) is fixedly connected with a second two cone gear disc (1003) engaged with the first one cone gear disc (1001), and the outer part of the second shaft (1002) is fixedly connected with a second one gear disc (1004).
3. The improved gearbox of the light mini-cultivator according to claim 2, characterized in that: The sliding mechanism (12) comprises a third one gear disc (1201) fixedly connected to the outer part of the third shaft (11), the third one gear disc (1201) and the second one gear disc (1004) are engaged with each other, the third shaft (11) penetrates the shift piece (3), one side of the shift piece (3) is rotatably connected with a third four gear disc (1202) slidably connected with the third shaft (11), the other side of the shift piece (3) is rotatably connected with a third five gear disc (1203) slidably connected with the third shaft (11), the third shaft (11) penetrates the shift piece (5), one side of the shift piece (5) is rotatably connected with a third two gear disc (1204) slidably connected with the third shaft (11), and the other side of the shift piece (5) is rotatably connected with a third three gear disc (1205) slidably connected with the third shaft (11).
4. The improved gearbox of a light mini-cultivator according to claim 1, characterized in that: The fourth shaft (1206) is rotatably connected in the gearbox body (1), penetrates the sliding sheet (7), one side of the sliding sheet (7) is rotatably connected with the fourth one-tooth disc (1207) which is in sliding connection with the fourth shaft (1206), the other side of the sliding sheet (7) is rotatably connected with the fourth two-tooth disc (1208) which is in sliding connection with the fourth shaft (1206), the outside of the fourth shaft (1206) is fixedly connected with the fourth three-tooth disc (1209), and the outside of the fourth shaft (1206) is fixedly connected with the fourth four-tooth disc (1210).
5. The improved gearbox of a light mini-cultivator according to claim 1, characterized in that: The rotating mechanism (14) comprises a fifth one-tooth disc (1401) fixedly connected to the outside of the fifth shaft (13), the outside of the fifth shaft (13) is fixedly connected with a fifth two-tooth disc (1402), the gearbox body (1) is rotatably connected with a sixth shaft (1403), the outside of the sixth shaft (1403) is fixedly connected with a sixth one-tooth disc (1404), the outside of the sixth shaft (1403) is fixedly connected with a sixth two-tooth disc (1405), and the outside of the sixth shaft (1403) is fixedly connected with a sixth three-tooth disc (1406).
6. The improved gearbox of a light mini-cultivator according to claim 1, characterized in that: The linkage mechanism (16) comprises a seventh one-tooth disc (1601) connected to the outside of the seventh shaft (15), the outside of the seventh shaft (15) is connected with a seventh two-tooth disc (1602), the outside of the seventh shaft (15) is connected with a seventh three-tooth disc (1603), the seventh one-tooth disc (1601) and the seventh three-tooth disc (1603) are connected with two steering shafts (8) respectively, the gearbox body (1) is rotatably connected with an eighth shaft sleeve (1604), one side of the eighth shaft sleeve (1604) is rotatably connected with an eighth one-shaft (1605), the other side of the eighth shaft sleeve (1604) is rotatably connected with an eighth two-shaft (1606), the outside of the eighth one-shaft (1605) is fixedly connected with an eighth one-tooth disc (1607), and the outside of the eighth two-shaft (1606) is fixedly connected with an eighth two-tooth disc (1608).
7. The improved gearbox of a light mini-cultivator according to claim 1, characterized in that: The moving mechanism (18) comprises a ninth one-toothed disc (1801) fixed outside the ninth shaft (17), the outside of the ninth shaft (17) is fixedly connected with a ninth two-toothed disc (1802), a tenth shaft (1803) is rotatably connected in the gearbox body (1), the outside of the tenth shaft (1803) is fixedly connected with an eleventh toothed disc (1804) engaged with the ninth one-toothed disc (1801), the outside of the tenth shaft (1803) is fixedly connected with a twelfth bevel gear disc (1805), an eleventh shaft (1806) is rotatably connected in the gearbox body (1), the outside of the eleventh shaft (1806) is fixedly connected with an eleventh one-toothed disc (1807) engaged with the twelfth bevel gear disc (1805), the outside of the eleventh shaft (1806) is fixedly connected with a twelfth one-toothed disc (1808), a twelfth shaft (1809) is rotatably connected in the gearbox body (1), the outside of the twelfth shaft (1809) is fixedly connected with a twelfth one-toothed disc (1810) engaged with the twelfth one-toothed disc (1808).