Gearbox of field management machine

Abstract

The utility model discloses a field management machine gearbox, which belongs to the technical field of power shift speed change output, and comprises a shell mechanism and a transmission mechanism V. The interior of the shell mechanism is rotatably connected with a transmission mechanism I, and the interior of the shell mechanism is also rotatably connected with a transmission mechanism II. A third transmission mechanism is further rotationally connected into the shell mechanism. Through the arrangement of the outer shell mechanism, the first transmission mechanism, the eighth transmission mechanism and the like, pure gear transmission is achieved, the size is small, the transmission ratio is large, the transmission structure can be fully wrapped through the shell, and abrasion and aging caused by the fact that oil, mud, water and the like enter the transmission structure are avoided; through the arrangement of the second transmission mechanism, the fourth transmission mechanism, the sixth transmission mechanism and the like, multi-gear speed change and multi-gear traction force adjustment of the field management machine are achieved, the number of gears of the field management machine is increased, and therefore the operation precision during use is improved.

Description

Technical Field

[0001] This utility model relates to the field of power shift transmission technology, and in particular to a garden management machine gearbox. Background Technology

[0002] Garden tillers are powered by small diesel or gasoline engines and are characterized by their light weight, small size, and simple structure. They are widely applicable to dry land, paddy fields, and orchards in plains, mountains, and hills. Garden tillers can move freely in the fields, making them easy for users to operate and store, eliminating the problem of large agricultural machinery being unable to access mountainous fields. They are the best alternative to oxen for farmers.

[0003] Existing garden tillers often have poorly designed gearboxes with insufficient gear lubrication. They commonly use chain or V-belt drives. Due to the harsh working environment of garden tillers, the friction and vibration between parts during operation, as well as the intrusion of oil, mud, and water, can cause wear, loosening of connections, corrosion, and aging of parts. This leads to a deterioration in the technical condition of the garden tiller, reduced power, increased fuel consumption, accelerated wear, and frequent malfunctions.

[0004] Therefore, there is an urgent need to provide a garden management machine gearbox 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 a garden management machine gearbox. This device adopts direct-drive four-wheel drive, has a simple structure, sufficient power, high safety performance, light weight, convenient operation, low failure rate, convenient maintenance, and long service life.

[0006] To solve the above-mentioned technical problems, the present invention adopts the following technical solution: providing a garden management machine gearbox, including a housing mechanism and a transmission mechanism five, wherein a transmission mechanism one is rotatably connected inside the housing mechanism, a transmission mechanism two is also rotatably connected inside the housing mechanism, a transmission mechanism three is also rotatably connected inside the housing mechanism, and a transmission mechanism four is also rotatably connected inside the housing mechanism.

[0007] The outer casing mechanism is also rotatably connected to a transmission mechanism five.

[0008] The outer casing mechanism is also rotatably connected to a transmission mechanism six, a transmission mechanism seven, and a transmission mechanism eight.

[0009] The present invention is further configured such that: the outer shell mechanism includes a first shell, a connecting cover is fixed on the first shell, and a second shell is fixed at the other end of the connecting cover.

[0010] Through the above technical solution, the first shell, the connecting cover and the second shell are made of alloy material and are fixed as a whole, which has high strength and can effectively protect the internal gears and gear shafts and other structures.

[0011] The present invention is further configured such that: the transmission mechanism 1 includes a transmission shaft 2 rotatably connected to the housing 1, and a spur gear 21, a spur gear 22, a bevel gear 23, a spur gear 24, a spur gear 25, and a spur gear 26 are fixed on the transmission shaft 2; the transmission mechanism 1 also includes a bevel gear 11 meshing with the bevel gear 23, and the transmission shaft 1 is fixed on the bevel gear 11.

[0012] Through the above technical solution, drive shaft one is connected to the engine output shaft or to the engine output shaft through a flywheel. When the engine starts, bevel gear one drives bevel gear two and three to rotate, thereby driving drive shaft two, flat gear two and one, flat gear two and two, flat gear two and four, flat gear two and five, and flat gear two and six to rotate.

[0013] The present invention is further configured such that: the transmission mechanism 2 includes a transmission shaft 3 rotatably connected to the housing 1, a spur gear 31 rotatably connected to the transmission shaft 3, a sliding sleeve slidably connected to the transmission shaft 3, a spur gear 32 and a spur gear 33 fixed on the sliding sleeve, a spur gear 34 fixed on the transmission shaft 3, and the transmission mechanism 2 also includes a shift shaft 2 slidably connected to the housing 1, and a shift paddle 2 fixed on the shift shaft 2.

[0014] Through the above technical solution, the three and four spur gears mesh with the two and six spur gears. When the two and six spur gears rotate, the three and four spur gears will drive the three transmission shafts and the sliding sleeve to rotate. The three and two spur gears and the three and three spur gears together with the sliding sleeve form a sliding double gear. The shift paddle two is rotatably connected to the sliding sleeve. By moving the shift shaft two, the shift paddle two can adjust the position of the sliding sleeve.

[0015] The present invention is further configured such that: the transmission mechanism three includes a transmission shaft four rotatably connected to the housing one, and a flat gear four one, a flat gear four two, and a flat gear four three are fixed on the transmission shaft four.

[0016] With the above technical solution, when shifting gear shaft two, the spur gear three-two can mesh with the spur gear four-one, or the spur gear three-three can mesh with the spur gear four-three or the spur gear two-five, thus forming three gears.

[0017] The present invention is further configured such that: the transmission mechanism four includes a transmission shaft five rotatably connected to the housing one, a flat gear five one fixed on the transmission shaft five, a sliding gear five three slidably arranged on the transmission shaft five, a flat gear five two fixed on the sliding gear five three, and the transmission mechanism four also includes a shift shaft one slidably connected to the housing one, and a shift paddle one fixed on the shift shaft one.

[0018] Through the above technical solution, the spur gear 51 meshes with the spur gear 21, and the spur gear 52 and the sliding gear 53 form a sliding double gear. The double gear can be moved by the shift shaft 1 and the shift paddle 1, so that the spur gear 52 meshes with the spur gear 41, or the sliding gear 53 meshes with the spur gear 43, forming two gears, and then transmitting power to the transmission shaft 4. By moving the shift shaft 1 and the shift shaft 2 through the external shift mechanism, multiple gears can be combined to form.

[0019] The present invention is further configured such that: the transmission mechanism five includes a transmission shaft six rotatably connected to the housing one, and a spur gear six-1, a spur gear six-2, and a spur gear six-3 are fixed on the transmission shaft six; a steering fork is also movably mounted on the transmission shaft six; the transmission mechanism five also includes a transmission shaft seven rotatably connected to the housing one, and a spur gear seven-1 and a spur gear seven-2 are fixed on the transmission shaft seven.

[0020] Through the above technical solution, spur gear 62 meshes with spur gear 42. When spur gear 42 rotates, spur gear 62 drives spur gear 61 and spur gear 63 to rotate through the transmission shaft. Spur gear 71 and spur gear 72 mesh with spur gear 61 and spur gear 63 respectively. When transmission shaft 6 rotates, spur gear 71 and spur gear 72 will drive transmission shaft 7 to rotate. Transmission shaft 7 is the walking output shaft, which can drive the wheels of the garden tiller to rotate.

[0021] The present invention is further configured such that: the transmission mechanism six includes a transmission shaft eight rotatably connected to the housing one, a sliding gear eight two is slidably disposed on the transmission shaft eight, and a flat gear eight one is fixed on the transmission shaft eight; the transmission mechanism six also includes a shift shaft three slidably connected to the housing one, and a shift paddle three is fixed on the shift shaft three.

[0022] Through the above technical solution, the spur gear 31 meshes with the spur gear 22, and the spur gear 81 meshes with the spur gear 31. When the engine starts, the spur gear 22 drives the spur gear 81 to rotate through the spur gear 31, thereby causing the sliding gear 82 to rotate. The sliding gear 82 can be moved through the shift shaft 3 and the shift paddle 3.

[0023] The present invention is further configured such that: the transmission mechanism 7 includes a transmission shaft 9 rotatably connected to the housing 1, and a flat gear 91 and a flat gear 92 are fixed on the transmission shaft 9; the transmission mechanism 7 also includes a transmission shaft 10 rotatably connected to the housing 1, and a bevel gear 11, a flat gear 12, and a flat gear 13 are fixed on the transmission shaft 10.

[0024] Through the above technical solution, by shifting the gear shaft three to move the sliding gear eight two, the sliding gear eight two can be engaged with the flat gear nine one, thereby causing the transmission shaft nine to drive the flat gear nine two to rotate. The flat gear thirteen is engaged with the flat gear nine two. When the flat gear nine two rotates, the flat gear thirteen will also rotate, thereby driving the transmission shaft ten to rotate. The gear shaft three can also shift the sliding gear eight two to engage with the flat gear twelve, thereby forming another gear.

[0025] The present invention is further configured such that: the transmission mechanism 8 includes a transmission shaft 11 rotatably connected to the connecting cover, one end of the transmission shaft 11 is fixed with a bevel gear 111, the other end of the transmission shaft 11 is fixed with a bevel gear 112, and the transmission mechanism 8 also includes a transmission shaft 12 rotatably connected to the housing 2, on which a bevel gear 121 is fixed.

[0026] Through the above technical solution, bevel gear 11 meshes with bevel gear 11. When the drive shaft 10 rotates, bevel gear 11 drives the drive shaft 11 to rotate through bevel gear 111. Bevel gear 12 meshes with bevel gear 121. When the drive shaft 11 rotates, bevel gear 121 will drive bevel gear 121 to rotate, thereby driving the drive shaft 12 to rotate. The drive shaft 12 is a power output shaft, which can drive the other two wheels of the garden tiller to rotate and output power.

[0027] The beneficial effects of this utility model are as follows:

[0028] 1. This utility model achieves pure gear transmission through the setting of the outer shell mechanism, transmission mechanism one and transmission mechanism eight, etc. It has a small size, a larger transmission ratio, and the outer shell can fully enclose the transmission structure to prevent oil, mud, water and other substances from entering the transmission structure and causing wear and aging.

[0029] 2. By setting up transmission mechanism two, transmission mechanism four and transmission mechanism six, this utility model realizes multi-speed change and multi-level traction adjustment of the garden tiller, increases the number of gears of the garden tiller, and thus improves the operating accuracy during use. Attached Figure Description

[0030] Figure 1 This is a three-dimensional structural diagram of the present invention;

[0031] Figure 2 The main structural view of transmission mechanism 1, transmission mechanism 2, transmission mechanism 3, transmission mechanism 4, transmission mechanism 5, transmission mechanism 6, transmission mechanism 7 and transmission mechanism 8 of this utility model are shown.

[0032] Figure 3 This is a structural diagram of the transmission mechanism of this utility model;

[0033] Figure 4This is a structural diagram of the transmission mechanism of this utility model;

[0034] Figure 5 This is a three-dimensional structural diagram of the transmission mechanism of this utility model;

[0035] Figure 6 This is a structural diagram of the transmission mechanism of this utility model;

[0036] Figure 7 This is a structural diagram of the transmission mechanism of this utility model;

[0037] Figure 8 This is a structural diagram of the transmission mechanism of this utility model;

[0038] Figure 9 This is a structural diagram of the transmission mechanism of this utility model;

[0039] Figure 10 This is a structural diagram of the transmission mechanism of this utility model.

[0040] In the diagram: 1. Outer shell mechanism; 101. Shell 1; 102. Connecting cover; 103. Shell 2; 2. Transmission mechanism 1; 201. Transmission shaft 2; 202. Spur gear 21; 203. Spur gear 22; 204. Bevel gear 23; 205. Spur gear 24; 206. Spur gear 25; 207. Spur gear 26; 208. Bevel gear 11; 209. Transmission shaft 1; 3. Transmission mechanism 2; 301. Transmission shaft 3; 302. 303. Sliding sleeve; 304. Sliding gear 32; 305. Sliding gear 33; 306. Sliding gear 34; 307. Shift shaft 2; 308. Shift paddle 2; 4. Transmission mechanism 3; 401. Transmission shaft 4; 402. Sliding gear 41; 403. Sliding gear 42; 404. Sliding gear 43; 5. Transmission mechanism 4; 501. Transmission shaft 5; 502. Sliding gear 51; 503. Sliding gear 52; 504. Sliding sleeve 5. Drive gear 53; 505. Shift shaft 1; 506. Shift paddle 1; 6. Transmission mechanism 5; 601. Drive shaft 6; 602. Spur gear 61; 603. Spur gear 62; 604. Spur gear 63; 605. Steering fork; 606. Drive shaft 7; 607. Spur gear 71; 608. Spur gear 72; 7. Transmission mechanism 6; 701. Drive shaft 8; 702. Sliding gear 82; 703. Spur gear 81; 704. Shift... 705. Gear shifter 3; 8. Transmission mechanism 7; 801. Drive shaft 9; 802. Flat gear 91; 803. Flat gear 92; 804. Drive shaft 10; 805. Bevel gear 11; 806. Flat gear 12; 807. Flat gear 13; 9. Transmission mechanism 8; 901. Drive shaft 11; 902. Bevel gear 111; 903. Bevel gear 112; 904. Drive shaft 12; 905. Bevel gear 121. Detailed Implementation

[0041] 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.

[0042] Please see Figures 1-10 A garden tiller gearbox includes a housing mechanism 1 and a transmission mechanism 6. The housing mechanism 1 includes a housing 101, a connecting cover 102 fixed on the housing 101, and a housing 2 103 fixed to the other end of the connecting cover 102. The housing 101, connecting cover 102, and housing 2 103 are made of alloy material and are integrally fixed, resulting in high strength and effective protection of internal gears and gear shafts. A transmission mechanism 2 is rotatably connected inside the housing mechanism 1. The transmission mechanism 2 includes a transmission shaft 201 rotatably connected to the housing 101. A spur gear 202 and a spur gear 203 are fixed on the transmission shaft 201. The transmission mechanism 2 also includes a bevel gear 208 that meshes with the bevel gear 204. A drive shaft 209 is fixed on the bevel gear 208. The drive shaft 209 is connected to the engine output shaft or to the engine output shaft through a flywheel. When the engine starts, the bevel gear 208 drives the bevel gear 204 to rotate, thereby driving the drive shaft 201, the bevel gear 202, the bevel gear 203, the bevel gear 205, the bevel gear 206, and the bevel gear 207 to rotate.

[0043] like Figure 2 , Figure 4 and Figure 5As shown, a transmission mechanism 2 3 is rotatably connected inside the outer casing mechanism 1. The transmission mechanism 2 3 includes a transmission shaft 301 rotatably connected to the outer casing 101. A spur gear 31 302 is rotatably connected to the transmission shaft 301. A sliding sleeve 303 is slidably connected to the transmission shaft 301. A spur gear 32 304 and a spur gear 33 305 are fixed to the sliding sleeve 303. A spur gear 34 306 is also fixed to the transmission shaft 301. The transmission mechanism 2 3 also includes a shift shaft 2 307 slidably connected to the outer casing 101. A shift paddle 2 308 is fixed to the shift shaft 2 307. The spur gear 34 306 meshes with the spur gear 26 207. When the spur gear 26 207 rotates, the spur gear 34 306 will drive the transmission shaft 301 and the sliding sleeve 303 to rotate. The two spur gears 304 and 305, together with the sliding sleeve 303, form a sliding double gear. The shift paddle 2 308 is rotatably connected to the sliding sleeve 303. By shifting the shift shaft 2 307, the shift paddle 2 308 can adjust the position of the sliding sleeve 303. The housing mechanism 1 is also rotatably connected to the transmission mechanism 3 4. The transmission mechanism 3 4 includes a transmission shaft 401 rotatably connected to the housing 1 101. The transmission shaft 401 is fixed with the spur gears 41 402, 42 403, and 43 404. When the shift shaft 2 307 is shifted, the spur gears 32 304 and 41 402 can mesh, or the spur gears 33 305 can mesh with the spur gears 43 404 or 25 206, thus forming three gears.

[0044] like Figure 2 , Figure 6 and Figure 7As shown, a transmission mechanism 4 5 is rotatably connected inside the outer casing mechanism 1. The transmission mechanism 4 5 includes a transmission shaft 501 rotatably connected to the outer casing 101. A spur gear 51 502 is fixed on the transmission shaft 501. A sliding gear 53 504 is slidably mounted on the transmission shaft 501. A spur gear 52 503 is fixed on the sliding gear 53 504. The transmission mechanism 4 5 also includes a shift shaft 505 slidably connected to the outer casing 101. A shift paddle 506 is fixed on the shift shaft 505. The spur gear 51 502 and... The two spur gears 21-202 mesh, and the two spur gears 52-503 and 53-504 form a sliding double gear. This double gear can be actuated via the shift shaft 1-505 and the shift paddle 1-506, causing either the two spur gears 52-503 to mesh with the two spur gears 41-402, or the two spur gears 53-504 to mesh with the two spur gears 43-404, thus creating two gear positions. Power is then transmitted to the drive shaft 401. The gears can be combined by actuating the shift shaft 1-505 and shift shaft 2-307 via an external shifting mechanism. The system forms multiple gear positions. Inside the outer casing mechanism 1, a transmission mechanism 6 is rotatably connected. Transmission mechanism 6 includes a transmission shaft 601 rotatably connected to the outer casing 101. A spur gear 61 602, a spur gear 62 603, and a spur gear 63 604 are fixed on the transmission shaft 601. A steering fork 605 is also movably mounted on the transmission shaft 601. Transmission mechanism 6 also includes a transmission shaft 606 rotatably connected to the outer casing 101. A spur gear 71 607 and a spur gear 72 608 are fixed on the transmission shaft 606. Gear 62603 meshes with spur gear 42403. When spur gear 42403 rotates, spur gear 62603 drives spur gear 61602 and spur gear 63604 to rotate via the drive shaft. Spur gear 71607 and spur gear 72608 mesh with spur gear 61602 and spur gear 63604 respectively. When drive shaft 601 rotates, spur gear 71607 and spur gear 72608 will drive drive shaft 706 to rotate. Drive shaft 706 is the walking output shaft, which can drive the wheels of the garden tiller to rotate.

[0045] like Figure 2 , Figure 8 and Figure 9As shown, a transmission mechanism 7 is rotatably connected inside the outer casing mechanism 1. The transmission mechanism 7 includes a transmission shaft 701 rotatably connected to the outer casing 101. A sliding gear 702 is slidably mounted on the transmission shaft 701. A spur gear 703 is also fixed on the transmission shaft 701. The transmission mechanism 7 also includes a shift shaft 704 slidably connected to the outer casing 101. A shift paddle 705 is fixed on the shift shaft 704. The spur gear 702 meshes with the spur gear 203, and the spur gear 703 meshes with the spur gear 302. When the engine starts, the spur gear 203 drives the spur gear 703 to rotate via the spur gear 302, thereby rotating the sliding gear 702. The sliding gear 702 can be shifted via the shift shaft 704 and the shift paddle 705. A transmission mechanism 8 is also rotatably connected inside the outer casing mechanism 1. The transmission mechanism 78 includes a transmission shaft 9801 rotatably connected to the housing 101. A spur gear 91802 and a spur gear 92803 are fixed on the transmission shaft 9801. The transmission mechanism 78 also includes a transmission shaft 10804 rotatably connected to the housing 101. A bevel gear 11805, a spur gear 12806, and a spur gear 13807 are fixed on the transmission shaft 10804. By shifting the sliding gear 82702 through the shift shaft 3704, the sliding gear 82702 can be engaged with the spur gear 91802, thereby causing the transmission shaft 9801 to drive the spur gear 92803 to rotate. The spur gear 13807 is engaged with the spur gear 92803. When the spur gear 92803 rotates, the spur gear 13807 will also rotate, thereby driving the transmission shaft 10804 to rotate. The shift shaft 3704 can also shift the sliding gear 82702 to engage with the spur gear 12806, thereby forming another gear.

[0046] like Figure 2 and Figure 10 As shown, a transmission mechanism 89 is rotatably connected inside the outer casing mechanism 1. The transmission mechanism 89 includes a transmission shaft 11901 rotatably connected to the connecting cover 102. One end of the transmission shaft 11901 is fixed with a bevel gear 11-902, and the other end of the transmission shaft 11901 is fixed with a bevel gear 11-2903. The transmission mechanism 89 also includes a transmission shaft 12904 rotatably connected to the outer casing 2 103. A bevel gear 12-905 is fixed on the transmission shaft 12904. The bevel gear 11-902 meshes with the bevel gear 11805. When the transmission shaft 11904 rotates, the bevel gear 11805 drives the transmission shaft 11901 to rotate through the bevel gear 11-902. The bevel gear 12-905 meshes with the bevel gear 11-2903. When the transmission shaft 11901 rotates, the bevel gear 11-2903 drives the bevel gear 12-905 to rotate, thereby driving the transmission shaft 12904 to rotate. The transmission shaft 12904 is a power output shaft that can drive the other two wheels of the garden tiller to rotate and output power.

[0047] In use, the operator installs the device in a garden tiller. The engine supplies power to the device through drive shaft 209, and the various transmission mechanisms drive drive shafts 606 and 904 to output power, thus driving the garden tiller. When operating the garden tiller, the operator can also use the externally connected shift mechanism to shift shift shafts 505, 307, and 704 to adjust the speed and traction output of the device.

[0048] 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. A garden tiller gearbox, comprising a housing mechanism (1) and a transmission mechanism (6), characterized in that: The outer shell mechanism (1) is rotatably connected to a transmission mechanism one (2), the outer shell mechanism (1) is also rotatably connected to a transmission mechanism two (3), the outer shell mechanism (1) is also rotatably connected to a transmission mechanism three (4), and the outer shell mechanism (1) is also rotatably connected to a transmission mechanism four (5). The outer shell mechanism (1) is also rotatably connected to a transmission mechanism (6); The outer shell mechanism (1) is also rotatably connected to a transmission mechanism six (7), the outer shell mechanism (1) is also rotatably connected to a transmission mechanism seven (8), and the outer shell mechanism (1) is also rotatably connected to a transmission mechanism eight (9).

2. The garden tiller gearbox according to claim 1, characterized in that: The outer shell mechanism (1) includes a first shell (101), a connecting cover (102) is fixed on the first shell (101), and a second shell (103) is fixed at the other end of the connecting cover (102).

3. The garden tiller gearbox according to claim 2, characterized in that: The transmission mechanism 1 (2) includes a transmission shaft 2 (201) rotatably connected to the housing 1 (101). The transmission shaft 2 (201) is fixed with a spur gear 21 (202), a spur gear 22 (203), a bevel gear 23 (204), a spur gear 24 (205), a spur gear 25 (206), and a spur gear 26 (207). The transmission mechanism 1 (2) also includes a bevel gear 11 (208) meshing with the bevel gear 23 (204). The transmission shaft 1 (209) is fixed on the bevel gear 11 (208).

4. The garden tiller gearbox according to claim 2, characterized in that: The transmission mechanism two (3) includes a transmission shaft three (301) rotatably connected to the housing one (101), a spur gear three one (302) rotatably connected to the transmission shaft three (301), a sliding sleeve (303) slidably connected to the transmission shaft three (301), a spur gear three two (304) and a spur gear three three (305) fixed on the sliding sleeve (303), a spur gear three four (306) fixed on the transmission shaft three (301), and a shift shaft two (307) slidably connected to the housing one (101), a shift paddle two (308) fixed on the shift shaft two (307).

5. The garden tiller gearbox according to claim 2, characterized in that: The transmission mechanism three (4) includes a transmission shaft four (401) rotatably connected to the housing one (101), and a spur gear four one (402), a spur gear four two (403), and a spur gear four three (404) are fixed on the transmission shaft four (401).

6. The garden tiller gearbox according to claim 2, characterized in that: The transmission mechanism four (5) includes a transmission shaft five (501) rotatably connected to the housing one (101), a spur gear five one (502) fixed on the transmission shaft five (501), a sliding gear five three (504) slidably arranged on the transmission shaft five (501), a spur gear five two (503) fixed on the sliding gear five three (504), and the transmission mechanism four (5) also includes a shift shaft one (505) slidably connected to the housing one (101), and a shift paddle one (506) fixed on the shift shaft one (505).

7. The garden tiller gearbox according to claim 2, characterized in that: The transmission mechanism five (6) includes a transmission shaft six (601) rotatably connected to the housing one (101). A spur gear six-1 (602), a spur gear six-2 (603), and a spur gear six-3 (604) are fixed on the transmission shaft six (601). A steering fork (605) is also movably mounted on the transmission shaft six (601). The transmission mechanism five (6) also includes a transmission shaft seven (606) rotatably connected to the housing one (101). A spur gear seven-1 (607) and a spur gear seven-2 (608) are fixed on the transmission shaft seven (606).

8. The garden tiller gearbox according to claim 2, characterized in that: The transmission mechanism six (7) includes a transmission shaft eight (701) rotatably connected to the housing one (101), a sliding gear eight two (702) is slidably disposed on the transmission shaft eight (701), and a flat gear eight one (703) is also fixed on the transmission shaft eight (701). The transmission mechanism six (7) also includes a shift shaft three (704) slidably connected to the housing one (101), and a shift paddle three (705) is fixed on the shift shaft three (704).

9. A garden tiller gearbox according to claim 2, characterized in that: The transmission mechanism seven (8) includes a transmission shaft nine (801) rotatably connected to the housing one (101), and a flat gear nine one (802) and a flat gear nine two (803) are fixed on the transmission shaft nine (801). The transmission mechanism seven (8) also includes a transmission shaft ten (804) rotatably connected to the housing one (101), and a bevel gear eleven (805), a flat gear twelve (806), and a flat gear thirteen (807) are fixed on the transmission shaft ten (804).

10. A garden tiller gearbox according to claim 2, characterized in that: The transmission mechanism 8 (9) includes a transmission shaft 11 (901) rotatably connected to the connecting cover (102). One end of the transmission shaft 11 (901) is fixed with a bevel gear 11 (902), and the other end of the transmission shaft 11 (901) is fixed with a bevel gear 12 (903). The transmission mechanism 8 (9) also includes a transmission shaft 12 (904) rotatably connected to the housing 2 (103). A bevel gear 12 (905) is fixed on the transmission shaft 12 (904).

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