Inducing assembly of tractor and drainage tractor thereof

Abstract

The induction assembly comprises a first shaft, an induction base, an induction cover and a plurality of induction gears. The induction base is rotatably arranged on the first shaft in a penetrating mode and can form transmission with a motor of the tractor, and a plurality of gear columns are arranged on the upper side of the induction base in a protruding mode. The induction cover can also be rotationally arranged on the first shaft in a penetrating mode and covers the induction base, a circle of induction gear ring is arranged on the inner side wall of the induction cover, an output gear is further arranged on the top of the induction cover in a protruding mode, and the induction cover and a brake assembly of the tractor can form transmission through the output gear; the induction gear is rotatably arranged on the gear column of the induction base in a penetrating mode, and the induction gear is meshed with an induction gear ring on the inner wall of the induction cover. According to the induction assembly, the induction base and the induction cover are adopted to form the induction assembly, so that the function of the induction assembly is achieved, and compared with an induction structure of induction magnetic steel and a metal induction ring in the existing market, the induction assembly is lighter in weight, and the production cost can be effectively saved.

Description

Technical Field

[0001] The utility model relates to the technical field of traction devices, and particularly relates to an induction component of a traction device and a drainage traction device. Background Technique

[0002] At present, the traction device is a key component in a fully automatic washing machine for controlling the opening and closing of the drainage valve and whether the brake disc is disengaged. Therefore, the quality of the traction device is particularly important for the quality of the whole machine. There is a traction rope outside the traction device, and it is composed of a motor and a gear transmission system inside. The drainage valve on the washing machine is driven by the traction rope to open and close. However, the types of drainage motors on the market are numerous and the structures are complex; and each transmission control part is distributed on different installation bases and there are many control and transmission parts, resulting in high costs. At the same time, due to the large number of gear trains in the transmission, the weight of the traction device has reached the limit.

[0003] The structure inside the existing traction devices on the market is relatively complex. The motor gear of the motor is not directly connected to the traction gear that drives the traction rope, but is transmitted to the traction gear through a planetary gear set. When the outer ring gear of the planetary gear rotates, the inner ring gear does not rotate, and thus the inner ring gear cannot be used to drive the traction gear to rotate. Therefore, a braking structure is also provided inside the traction device to lock the outer ring gear of the planetary gear set, so that the inner ring gear rotates to drive the traction gear to rotate and drive the traction rope to move.

[0004] After the braking structure in the above-mentioned traction device locks the outer ring gear of the planetary gear set under the drive of the motor, the braking structure has moved in place and cannot move anymore. Then, if the motor continues to act on the braking structure in this situation, it will cause the internal structure of the traction device to be stuck and damaged. Therefore, an induction structure is also provided between the motor and the braking structure in the existing traction device to complete the transmission between the motor and the braking structure, and when the braking structure moves in place, the induction structure can quickly cut off the transmission between the motor and the braking structure to ensure the normal operation of the traction device.

[0005] Among them, for example, the Chinese patent application with the application number CN202211104942.5 discloses:

[0006] "A drainage control system, comprising: a housing; a motor assembly including a coil bobbin, a rotor gear and a conductive assembly, wherein there is a sealed cavity inside the coil bobbin, the sealed cavity is filled with potting glue, and there is an installation plane in the outer cavity; a braking gear mechanism including a first transmission wheel set and a braking gear set, the first transmission wheel set and the braking gear set are meshed with each other, and the first transmission wheel set is meshed with the rotor gear; a traction gear mechanism including a traction gear and a transition gear, the traction gear and the transition gear are meshed with each other, and there is a second transmission wheel set between the transition gear and the rotor gear; taking the installation plane component coordinate system, the rotor gear forms the origin, and the connection line with the first transmission wheel set constitutes the Y axis, and the vector angle β

[0007] > 68° between the first transmission wheel set with respect to the rotor gear and the braking gear set; and the vector angle α between the transition gear with respect to the rotor gear and the traction gear > 69°, ensuring large torque in a small volume."

[0008] However, including the solutions described in the above patents, there is a defect in the drainage tractor in the prior art, that is, the induction structure in the existing tractor is composed of an induction magnet and an induction ring, and the induction ring is made of metal, so as to realize the transmission between the induction magnet and the induction ring. Whether it is the induction magnet or the metal induction ring, their weights are relatively heavy. And because of the complex structure inside the tractor itself, its weight is already very heavy. Coupled with such a heavy traction structure, it will make the overall tractor too heavy, and using the method of induction magnet and induction ring will also increase the production cost. Summary of the Invention

[0009] In order to overcome the deficiencies in the prior art that the traction structure in the drainage tractor will cause the tractor to be too heavy and the cost to increase, the utility model provides an induction component of a tractor and its drainage tractor.

[0010] The technical solution for the utility model to solve its technical problems is: an induction component of a tractor, comprising:

[0011] A first shaft;

[0012] An induction base, which is rotatably penetrated on the first shaft and can form a transmission with the motor of the tractor. Several gear columns are convexly provided on the upper side of the induction base;

[0013] An induction cover, which is also rotatably penetrated on the first shaft and covers the upper part of the induction base. A circle of induction tooth rings is arranged on the inner side wall of the induction cover. An output gear is also convexly provided on the top of the induction cover. The induction cover can form a transmission with the braking component of the tractor through the output gear;

[0014] Several induction gears, which are rotatably penetrated on the gear columns of the induction base, and the induction gears are meshed with the induction tooth rings on the inner wall of the induction cover.

[0015] Further, it also includes an induction joint. The induction joint is rotatably sleeved on the first shaft and located below the induction base. The upper end of the induction joint is in transmission connection with the induction base. The lower end of the joint protrudes with an input gear, and the input gear can be meshed with the motor gear on the traction motor, so as to realize the transmission between the induction base and the traction motor.

[0016] Further, it also includes an induction torsion spring located between the induction base and the induction joint. The induction torsion spring includes a first end and a second end. A lower stop post protrudes from the upper side of the induction joint, and an upper stop post protrudes from the lower side of the induction torsion spring. The first end of the induction torsion spring abuts against the lower stop post, and the second end of the induction torsion spring abuts against the upper stop post. The induction base and the induction joint are in transmission connection through the induction torsion spring.

[0017] Further, a limit post protrudes from the center of the lower side of the induction base, and a limit groove is recessed on the upper side of the induction joint. The limit post is inserted and fitted in the limit groove. And a through hole is vertically penetrated through the center of the induction base, and an inner connection post protrudes from the upper side of the induction joint. The inner connection post is inserted and fitted in the through hole. The induction joint also includes a shaft hole for passing through the first shaft, and the shaft hole penetrates the inner connection post.

[0018] Further, the gear columns are circumferentially and equidistantly arrayed around the axis of the first shaft.

[0019] Further, three or four gear columns are provided.

[0020] The utility model also includes a drainage tractor, which includes the above-mentioned induction assembly;

[0021] It also includes:

[0022] A housing;

[0023] A motor assembly, which includes a motor and a motor bracket. A motor gear is connected to the output shaft of the motor, and the first shaft is connected to the motor bracket;

[0024] A traction assembly, which includes a second shaft connected to the motor bracket. A traction gear is rotatably penetrated through the second shaft. A traction rope is connected to the traction gear. The traction gear is in transmission cooperation with the motor gear on the output shaft. Part of the traction rope extends out of the housing, and the traction rope can extend or retract relative to the housing under the drive of the traction gear;

[0025] The braking assembly includes a third shaft connected to the motor bracket. A braking lever is rotatably disposed on the third shaft. The braking lever is in transmission connection with the induction assembly, and the braking lever can act on the traction assembly under the drive of the induction assembly to prevent the rotation of the traction gear.

[0026] Further, the braking assembly further includes a fourth shaft connected to the motor bracket. An upper transmission gear and a lower transmission gear are rotatably disposed on the fourth shaft. The motor gear and the input gear are both meshed with the lower transmission gear. The braking lever includes a gear portion, and the gear portion and the output gear are both meshed with the upper transmission gear.

[0027] Further, the braking assembly further includes a braking spring. A braking post is disposed on the braking lever, and a fixing post protrudes from the housing. One end of the braking spring is connected to the braking post, and the other end is connected to the fixing post. The braking spring acts on the braking lever to always have a movement tendency away from the traction assembly.

[0028] Further, the traction assembly further includes a fifth shaft, a sixth shaft, and a seventh shaft;

[0029] An inertia bracket is rotatably disposed on the fifth shaft. An inertia plate is connected to the top of the inertia bracket. An interference protrusion protrudes from the side wall of the inertia bracket. The interference protrusion can form an interference fit with the braking lever. A braking gear is further disposed at the bottom of the inertia bracket;

[0030] A planetary gear set is rotatably disposed on the sixth shaft. The planetary gear set includes an inner ring gear and an outer ring gear. The outer ring gear is meshed with the braking gear;

[0031] An acting gear is rotatably disposed on the seventh shaft. The upper end of the acting gear is meshed with the inner ring gear, and the lower end thereof is meshed with the traction gear.

[0032] The induction method of the induction assembly in the present utility model:

[0033] After power-on, the motor starts. The motor gear drives the input gear at the bottom of the induction assembly to rotate the induction assembly. The induction assembly drives the induction base to rotate together through the induction torsion spring. Since the induction gear on the induction base is meshed with the induction tooth ring inside the induction cover, the induction cover can rotate under the drive of the induction gear. When the induction cover rotates, it can transmit the rotation to the braking assembly through the output gear, so that the braking lever can approach the traction assembly and lock the outer ring gear in the traction assembly;

[0034] When the braking lever moves into place and locks the outer ring gear, the braking lever will be blocked and unable to move. At this time, the induction cover that is driven by the braking lever cannot rotate either. Although the induction splice and the induction base are still rotating under the drive of the motor, since the induction gear is sleeved on the gear column of the induction base, the induction gear can rotate relative to the induction base, thus releasing the transmission between the induction base and the induction cover.

[0035] The beneficial effects of the present utility model are as follows:

[0036] 1. The induction assembly is composed of an induction base and an induction cover, and the induction base and the induction cover are driven by an induction gear that is rotatably sleeved on the induction base. This enables not only the transmission between the induction base and the induction cover but also, when the induction cover cannot rotate, the induction base can rotate relative to the induction cover to avoid jamming between the two, thus realizing the function of the induction assembly. Compared with the existing induction structure of induction magnetic steel and metal induction ring on the market, this induction assembly is not only lighter in weight, effectively saving production costs but also effectively saving resources such as aluminum and magnet.

[0037] 2. An induction splice is also provided in the induction assembly to drive the induction base, and the induction splice and the induction base are connected by an induction torsion spring. This can not only achieve the transmission between the two but also generate a certain torque during their rotation together, and can also make the magnitude of the transmission force between the two change when the state of the induction assembly changes, avoiding transmission wear between the induction base and the induction splice. When the two stop rotating, the induction torsion spring can also act on them to reset them.

[0038] 3. Multiple setting schemes for the gear columns on the induction base are given. According to the product model, structure, and the magnitude of the transmission force required by the induction assembly, the number of gear columns on the induction base can be adjusted, thereby adjusting the number of induction gears in the induction assembly to meet various application requirements. Description of the Drawings

[0039] Figure 1 is a schematic structural diagram of the induction assembly in Embodiment 1 of the present utility model.

[0040] Figure 2 is an exploded schematic diagram of the induction assembly in Embodiment 1 of the present utility model.

[0041] Figure 3 is a schematic structural diagram of the induction cover in Embodiment 1 of the present utility model.

[0042] Figure 4 is a schematic structural diagram of the induction base in Embodiment 1 of the present utility model.

[0043] Figure 5It is a schematic structural diagram of the induced combined use in the first embodiment of the present utility model.

[0044] Figure 6 It is a schematic structural diagram of the drainage tractor in the first embodiment of the present utility model.

[0045] Figure 7 It is an exploded schematic diagram of the drainage tractor in the first embodiment of the present utility model.

[0046] Figure 8 It is a schematic internal structure diagram of the drainage tractor in the first embodiment of the present utility model.

[0047] Figure 9 It is a sectional view of the drainage tractor in the first embodiment of the present utility model.

[0048] Figure 10 It is a schematic structural diagram of the braking component in the first embodiment of the present utility model.

[0049] Figure 11 It is a schematic structural diagram of the traction component in the first embodiment of the present utility model.

[0050] Figure 12 It is another schematic structural diagram of the traction component in the first embodiment of the present utility model.

[0051] Figure 13 It is a schematic structural diagram of the induced base in the second embodiment of the present utility model.

[0052] Numbers in the figure: 1. First shaft; 2. Induced base; 3. Gear column; 4. Induced cover; 5. Induced gear ring; 6. Output gear; 7. Induced gear; 8. Induced combined use; 9. Input gear; 10. Induced torsion spring; 11. Lower stop column; 12. Upper stop column; 13. Limit column; 14. Limit groove; 15. Inner connection hole; 16. Inner connection column; 17. Shaft hole; 18. Outer shell; 19. Motor; 20. Motor bracket; 21. Motor gear; 22. Second shaft; 23. Traction gear; 24. Traction rope; 25. Third shaft; 26. Braking lever; 27. Fourth shaft; 28. Upper transmission gear; 29. Lower transmission gear; 30. Gear part; 31. Braking spring; 32. Braking column; 33. Fixed column; 34. Fifth shaft; 35. Sixth shaft; 36. Seventh shaft; 37. Inertia bracket; 38. Inertia plate; 39. Interference protrusion; 40. Braking gear; 41. Inner ring gear; 42. Outer ring gear; 43. Acting gear. Detailed implementation manners

[0053] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present invention without creative efforts shall fall within the protection scope of the present invention.

[0054] It should be understood that although terms such as upper, middle, lower, top, one end, etc. appear in this article to describe various elements, these elements are not limited by these terms. These terms are only used to distinguish elements from each other for easy understanding, rather than for defining any directional or sequential limitations.

[0055] Embodiment 1

[0056] Combined with Figures 1 to 5 As shown, an induction component of a traction device includes a first shaft 1, an induction base 2, an induction cover 4, and a plurality of induction gears 7; the induction base 2 is rotatably penetrated through the first shaft 1 and can form a transmission with the motor 19 of the traction device, and a plurality of gear columns 3 are convexly provided on the upper side of the induction base 2; the induction cover 4 is also rotatably penetrated through the first shaft 1 and covers the upper part of the induction base 2, and an induction tooth ring 5 is provided on the inner side wall of the induction cover 4, and an output gear 6 is further convexly provided on the top of the induction cover 4, and the induction cover 4 can form a transmission with the braking component of the traction device through the output gear 6; the induction gears 7 are rotatably penetrated through the gear columns 3 of the induction base 2, and the induction gears 7 are engaged with the induction tooth ring 5 on the inner wall of the induction cover 4.

[0057] Combined with Figure 1 、 Figure 2 and Figure 5 As shown, in this embodiment, an induction splice 8 is further included. The induction splice 8 is rotatably sleeved on the first shaft 1 and is located below the induction base 2; the upper end of the induction splice 8 is in transmission connection with the induction base 2, and an input gear 9 is convexly provided at the lower end of the splice. The input gear 9 can be engaged with the motor gear 21 on the traction device motor 19, so as to realize the transmission between the induction base 2 and the traction device motor 19.

[0058] Combined with Figure 1 、 Figure 2 and Figure 5As shown, in this embodiment, there is also an induction torsion spring 10 located between the induction base 2 and the induction sharing part 8. The induction torsion spring 10 includes a first end and a second end. A lower stop post 11 protrudes from the upper side of the induction sharing part 8, and an upper stop post 12 protrudes from the lower side of the induction torsion spring 10. The first end of the induction torsion spring 10 abuts against the lower stop post 11, and the second end of the induction torsion spring 10 abuts against the upper stop post 12. Transmission is formed between the induction base 2 and the induction sharing part 8 through the induction torsion spring 10.

[0059] Combined with Figure 2 、 Figure 4 and Figure 5 As shown, at the center of the lower side of the induction base 2 in this embodiment, a limit post 13 protrudes. A limit groove 14 is recessed on the upper side of the induction sharing part 8. The limit post 13 is inserted and fitted into the limit groove 14; and an internal connection hole 15 is also vertically penetrated through the center of the induction base 2. An internal connection post 16 protrudes from the upper side of the induction sharing part 8. The internal connection post is inserted and fitted into the internal connection hole 15. The induction sharing part 8 also includes a shaft hole 17 for passing through the first shaft 1, and the shaft hole 17 penetrates through the internal connection post 16.

[0060] Combined with Figure 4 As shown, in this embodiment, the gear columns 3 are circumferentially and equidistantly arrayed around the axis of the first shaft 1.

[0061] Combined with Figure 4 As shown, in this embodiment, three gear columns 3 are provided.

[0062] In this embodiment, the induction base 2, the induction cover 4, the induction gear 7, and the induction sharing part 8 are all made of plastic material.

[0063] Combined with Figures 6 to 12As shown, the present utility model further includes a drainage tractor, which includes the above-mentioned induction assembly; it further includes a housing 18, a motor 19 assembly, a traction assembly and a braking assembly; the motor 19 assembly includes a motor 19 and a motor bracket 20, and a motor gear 21 is connected to the output shaft of the motor 19, and the first shaft 1 is connected to the motor bracket 20; the traction assembly includes a second shaft 22 connected to the motor bracket 20, a traction gear 23 is rotatably penetrated through the second shaft 22, a traction rope 24 is connected to the traction gear 23, the traction gear 23 forms a transmission cooperation with the motor gear 21 on the output shaft, a part of the traction rope 24 extends out of the housing 18, and the traction rope 24 can extend or retract relative to the housing 18 under the drive of the traction gear 23; the braking assembly includes a third shaft 25 connected to the motor bracket 20, a braking lever 26 is rotatably penetrated through the third shaft 25, the braking lever 26 forms a transmission connection with the induction assembly, and the braking lever 26 can act on the traction assembly under the drive of the induction assembly to prevent the rotation of the traction gear 23.

[0064] As shown in Figure 10 In this embodiment, the braking assembly further includes a fourth shaft 27 connected to the motor bracket 20, an upper transmission gear 28 and a lower transmission gear 29 are rotatably penetrated through the fourth shaft 27; both the motor gear 21 and the input gear 9 are meshed with the lower transmission gear 29; the braking lever 26 includes a gear portion 30, and both the gear portion 30 and the output gear 6 are meshed with the upper transmission gear 28.

[0065] Combined with Figure 8 and Figure 10 As shown in, in this embodiment, the braking assembly further includes a braking spring 31, a braking post 32 is arranged on the braking lever 26, a fixing post 33 protrudes from the housing 18, one end of the braking spring 31 is connected to the braking post 32, and the other end is connected to the fixing post 33. The braking spring 31 acts on the braking lever 26 to always have a movement tendency away from the traction assembly.

[0066] Combined with Figure 11 and Figure 12As shown, in this embodiment, the traction assembly further includes a fifth shaft 34, a sixth shaft 35, and a seventh shaft 36; an inertia bracket 37 is rotatably penetrated through the fifth shaft 34, an inertia plate 38 is connected to the top of the inertia bracket 37, an interference protrusion 39 protrudes from the side wall of the inertia bracket 37, the interference protrusion 39 can form an interference fit with the brake lever 26, and a brake gear 40 is further provided at the bottom of the inertia bracket 37; a planetary gear set is rotatably penetrated through the sixth shaft 35, the planetary gear set includes an inner ring gear 41 and an outer ring gear 42, and the outer ring gear 42 meshes with the brake gear 40; a driving gear 43 is rotatably penetrated through the seventh shaft 36, the upper end of the driving gear 43 meshes with the inner ring gear 41, and the lower end thereof meshes with the traction gear 23.

[0067] As shown in Figure 10 As shown, on the upper side of the brake lever 26 in this embodiment, an interference plate 44 further protrudes. When the tractor is powered on, the motor 19 drives the induction assembly, and the induction assembly then drives the brake lever 26 through the upper transmission gear 28 to rotate against the action of the brake spring 31. The brake lever 26 then approaches the inertia bracket 37 until the interference plate 44 on the brake lever 26 forms an interference fit with the interference protrusion 39 on the inertia bracket 37. At this time, the inertia bracket 37 is locked by the brake lever 26 and cannot rotate, and the outer ring gear 42 meshing with the inertia bracket 37 is also locked accordingly; when powered off, the brake lever 26 loses the drive of the induction assembly and thus moves away from the inertia bracket 37 and resets under the action of the induction spring.

[0068] In this embodiment, before the outer ring gear 42 is locked, due to the transmission relationship between the planetary gear sets, only the outer ring gear 42 of the planetary gear set can rotate under the drive of the motor 19, and the inner ring gear 41 cannot rotate. Therefore, the motor 19 cannot transmit the drive to the driving gear 43; after the outer ring gear 42 is locked, the inner ring gear 41 can rotate under the drive of the motor 19, and then drive the traction gear 23 to rotate through the driving gear 43, so as to drive the traction rope 24.

[0069] The induction method of the induction assembly in this embodiment:

[0070] After being powered on, the motor 19 starts, and the motor gear 21 drives the induction assembly 8 to rotate by driving the input gear 9 at the bottom of the induction assembly 8. The induction assembly 8 then drives the induction base 2 to rotate together through the induction torsion spring 10. Since the induction gear 7 on the induction base 2 meshes with the induction tooth ring 5 inside the induction cover 4, the induction cover 4 can rotate driven by the induction gear 7. When the induction cover 4 rotates, it can transmit the rotation to the brake assembly through the output gear 6, so that the brake lever 26 can approach the traction assembly and lock the outer ring gear 42 inside the traction assembly;

[0071] When the brake lever 26 moves into place and locks the outer ring gear 42, the brake lever 26 will be blocked and unable to move. At this time, the induction cover 4 driven by the brake lever 26 cannot rotate either. The induction splice 8 and the induction base 2 are still rotating driven by the motor 19. However, since the induction gear 7 is sleeved on the gear post 3 of the induction base 2, the induction gear 7 can rotate relative to the induction base 2, thus releasing the transmission between the induction base 2 and the induction cover 4.

[0072] The advantages of this embodiment are as follows: Compared with the drainage tractor using the form of induction permanent magnet and metal induction ring on the market, the overall weight of this tractor is lighter and the production cost is also lower.

[0073] Embodiment 2

[0074] Refer to Figure 13 As shown, the main difference feature between this embodiment and the above Embodiment 1 is that: in this embodiment, four gear posts 3 are provided.

[0075] The rest of the structures and methods in this embodiment are the same as those in the above Embodiment 1 and will not be elaborated here.

[0076] The advantages of this embodiment are as follows: It provides another setting method for the number of gear posts and induction gears in the induction assembly, which can be adjusted according to the magnitude of the traction force required in each model of the tractor.

[0077] The above specific embodiments are only explanations of the present invention, and they are not limitations to the present invention. Those skilled in the art can make modifications without creative contributions to this embodiment according to needs after reading this specification, but as long as they are within the scope of the claims of the present invention, they are protected by the patent law.

Claims

1. An induction component of a tractor, characterized in that: Included are: First axis (1); An induction base (2) is rotatably mounted on the first shaft (1) and is capable of forming a transmission with a motor (19) of the tractor. A plurality of gear columns (3) are convexly arranged on the upper side of the induction base (2); An induction cover (4) is also rotatably arranged on the first shaft (1) and covers the top of the induction base (2). A circle of induction gear rings (5) is arranged on the inner side wall of the induction cover (4). An output gear (6) is also protruding from the top of the induction cover (4). The induction cover (4) can form a transmission with the brake assembly of the tractor through the output gear (6); A plurality of induction gears (7) are rotatably mounted on the gear column (3) of the induction base (2), and the induction gears (7) are meshed with the induction tooth ring (5) on the inner wall of the induction cover (4).

2. The induction assembly of a tractor according to claim 1, characterized in that: The invention also comprises an induction assembly (8), which is rotatably sleeved on the first shaft (1) and is located below the induction base (2); the upper end of the induction assembly (8) is in transmission connection with the induction base (2), and the lower end of the assembly is convexly provided with an input gear (9), and the input gear (9) can mesh with the motor gear (21) on the traction device motor (19), thereby realizing transmission between the induction base (2) and the traction device motor (19).

3. The induction assembly of a tractor according to claim 2, characterized in that: The invention also includes an induction torsion spring (10) located between the induction base (2) and the induction assembly (8), wherein the induction torsion spring (10) includes a first end and a second end, a lower stop column (11) is convexly provided on the upper side of the induction assembly (8), and an upper stop column (12) is convexly provided on the lower side of the induction torsion spring (10), the first end of the induction torsion spring (10) is in contact with the lower stop column (11), and the second end of the induction torsion spring (10) is in contact with the upper stop column (12), and transmission is formed between the induction base (2) and the induction assembly (8) through the induction torsion spring (10).

4. The induction assembly of a tractor according to claim 2, characterized in that: A limiting column (13) is convexly provided at the center of the lower side of the induction base (2), and a limiting groove (14) is concavely provided on the upper side of the induction assembly (8), and the limiting column (13) is plugged into the limiting groove (14); and an internal connection hole (15) is also opened from top to bottom at the center of the induction base (2), and an internal connection column (16) is convexly provided on the upper side of the induction assembly (8), and the internal connection column is plugged into the internal connection hole (15). The induction assembly (8) also includes an axial hole (17) for passing the first axis (1), and the axial hole (17) passes through the internal connection column (16).

5. The induction assembly of a tractor according to claim 1, characterized in that: The gear columns (3) are distributed in a circumferentially equidistant array with the axis of the first shaft (1) as the center.

6. The induction assembly of a tractor according to claim 1, characterized in that: The gear columns (3) are provided in number of three or four.

7. A drainage tractor, characterized in that: The induction component comprises any one of claims 1 to 6; Also included are: Housing (18); A motor (19) assembly, comprising a motor (19) and a motor bracket (20), wherein the output shaft of the motor (19) is connected to a motor gear (21), and the first shaft (1) is connected to the motor bracket (20); A traction assembly, comprising a second shaft (22) connected to a motor bracket (20), a traction gear (23) rotatably passing through the second shaft (22), a traction rope (24) connected to the traction gear (23), the traction gear (23) forming a transmission match with a motor gear (21) on the output shaft, the traction rope (24) partially extending out of a housing (18), and the traction rope (24) can be extended or retracted relative to the housing (18) under the drive of the traction gear (23); The brake assembly comprises a third shaft (25) connected to a motor bracket (20); a brake lever (26) is rotatably provided on the third shaft (25); the brake lever (26) is in transmission connection with the induction assembly; the brake lever (26) can act on the traction assembly under the drive of the induction assembly, thereby preventing the rotation of the traction gear (23).

8. A drainage tractor according to claim 7, characterized in that: The brake assembly also includes a fourth shaft (27) connected to the motor bracket (20), and an upper transmission gear (28) and a lower transmission gear (29) are rotatably passed through the fourth shaft (27); the motor gear (21) and the input gear (9) are both meshed with the lower transmission gear (29); the brake lever (26) includes a gear portion (30), and the gear portion (30) and the output gear (6) are both meshed with the upper transmission gear (28).

9. A drainage tractor according to claim 7, characterized in that: The brake assembly also includes a brake spring (31), a brake column (32) is provided on the brake lever (26), a fixing column (33) is protruded on the housing (18), one end of the brake spring (31) is connected to the brake column (32), and the other end is connected to the fixing column (33), and the brake spring (31) acts on the brake lever (26) so that it always has a tendency to move away from the traction assembly.

10. A drainage tractor according to claim 7, characterized in that: The traction assembly also includes a fifth shaft (34), a sixth shaft (35) and a seventh shaft (36); An inertia bracket (37) is rotatably mounted on the fifth shaft (34), an inertia plate (38) is connected to the top of the inertia bracket (37), an interference protrusion (39) is convexly mounted on the side wall of the inertia bracket (37), and the interference protrusion (39) can form an interference fit with the brake lever (26), and a brake gear (40) is also disposed at the bottom of the inertia bracket (37); A planetary gear set is rotatably mounted on the sixth shaft (35), wherein the planetary gear set includes an inner ring gear (41) and an outer ring gear (42), and the outer ring gear (42) is meshed with the brake gear (40); The seventh shaft (36) is rotatably provided with an action gear (43), the upper end of the action gear (43) is meshed with the inner ring gear (41), and the lower end of the action gear (43) is meshed with the traction gear (23).

Images