Full-power gear shifting transmission gearbox and tractor

Abstract

The invention relates to the technical field of gearboxes, in particular to a full-power gear shifting transmission gearbox and a tractor, a first shaft, a second shaft, a third shaft, a fourth shaft and a fifth shaft are each provided with a plurality of transmission gears and a plurality of clutches used for being combined with the transmission gears, and a gearbox body is provided with an electromagnetic valve set; the output end of the electromagnetic valve set communicates with the clutches and is used for controlling the clutches to be combined with or separated from the transmission gears. The configuration that the electromagnetic valve set controls the clutch and the transmission gear to be combined or separated is that in the forward gear, the first shaft, the second shaft, the third shaft, the fourth shaft and the fifth shaft are in transmission connection in sequence; in a reverse gear, the first shaft, the third shaft, the fourth shaft and the fifth shaft are sequentially in transmission connection. The transmission mechanism has the beneficial effects that the clutches on the shafts are controlled through the electromagnetic valve set, so that the clutches are controlled to be combined with or separated from the corresponding transmission gears, multiple transmission paths are achieved, and the number of gears is remarkably increased on the premise that the structural complexity is not increased.

Description

Technical Field

[0001] The present invention relates to the technical field of gearboxes, and particularly to a full-power shift transmission gearbox and a tractor. Background Art

[0002] As an important mechanical equipment in agricultural production, the convenience of operation and the uninterrupted power output during speed change of a tractor are directly related to driving comfort and operation efficiency. In recent years, with the continuous improvement of agricultural mechanization, tractors are increasingly widely used in agricultural production. However, problems such as high labor intensity and low operation efficiency in shifting gears of traditional mechanical-shift tractors have become increasingly prominent. Therefore, researching and designing full-power shift for tractors to improve the control performance of tractors has important practical significance and application value.

[0003] The tractor gearbox, as an important part of the tractor transmission system, mainly functions to change the engine speed and torque when the tractor is operating.

[0004] When a tractor is operating with a load in the farmland, it often faces complex and changeable road and operation environments. In case of encountering obstacles or reversing operations, the tractor may need to stop and shift gears, reducing the operation efficiency.

[0005] In the prior art with the patent number 202421174185.3 and the patent name "A Gearbox and an Agricultural Microtiller", the gears of the transmission are controlled by a shift fork shaft, a shift fork, a shift lever, and a gear lever, so as to achieve the adjustment of multiple gears. In this prior art, it is necessary to step on the clutch when shifting gears, the operation is complex, and the power flow needs to be cut off during the gear shifting and speed change process, resulting in energy consumption waste. Summary of the Invention

[0006] The technical problem to be solved by the present invention is to provide a full-power shift transmission gearbox and a tractor to solve the above problems existing in the prior art.

[0007] The technical solution of the present invention to solve the above technical problems is as follows: a full power shift transmission gearbox, including a gearbox housing, wherein one shaft, two shafts, three shafts, four shafts and five shafts are rotatably arranged in parallel with each other in the gearbox housing, and a plurality of transmission gears are respectively arranged on the one shaft, the two shafts, the three shafts, the four shafts and the five shafts, and a plurality of clutches for combining with the transmission gears are respectively arranged on the one shaft, the two shafts, the four shafts and the five shafts, and a solenoid valve group is provided on the gearbox housing, and the input end of the solenoid valve group is used to communicate with an external hydraulic source or an air source, and the output end of the solenoid valve group is communicated with the clutch for respectively controlling each of the clutches to combine or separate with the transmission gear; the configuration of the solenoid valve group controlling the clutch to combine or separate with the transmission gear is as follows: in the forward gear, the one shaft, the two shafts, the three shafts, the four shafts and the five shafts are sequentially connected in transmission; in the reverse gear, the one shaft, the three shafts, the four shafts and the five shafts are sequentially connected in transmission.

[0008] The beneficial effects of the present invention are as follows: the present invention controls the clutches on each shaft respectively through the electromagnetic valve group, thereby controlling each clutch to respectively achieve engagement or separation with the corresponding transmission gear, thereby achieving multiple transmission paths, and significantly increasing the number of gears without increasing the complexity of the structure; the electromagnetic valve group has a short response time and a fast shifting speed, and there is no power interruption during the shifting process, which reduces energy consumption and improves the smoothness and efficiency of the shifting; by controlling whether the three shafts are on the transmission path, the forward and reverse rotation of the five-axis output is achieved, thereby achieving the control of the forward gear and the reverse gear, avoiding the use of the additional gear group or planetary gear system required for the reverse gear in the prior art, and simplifying the transmission structure.

[0009] Based on the above technical solution, the present invention can also be improved as follows.

[0010] Further, the transmission gears on the first shaft include a first gear on the first shaft, a second gear on the first shaft, a third gear on the first shaft, and a fourth gear on the first shaft that are spaced apart. The first gear on the first shaft is fixedly sleeved on the first shaft, and the second gear on the first shaft, the third gear on the first shaft, and the fourth gear on the first shaft are all rotatably connected to the first shaft. The clutches on the first shaft include a left clutch on the first shaft, a middle clutch on the first shaft, and a right clutch on the first shaft. The left clutch on the first shaft is arranged beside the second gear on the first shaft for engaging or disengaging with the second gear on the first shaft. The middle clutch on the first shaft is arranged beside the third gear on the first shaft for engaging or disengaging with the third gear on the first shaft. The right clutch on the first shaft is arranged beside the fourth gear on the first shaft for engaging or disengaging with the fourth gear on the first shaft. The first gear on the first shaft is constantly meshed with a transmission gear on the second shaft. The second gear on the first shaft is constantly meshed with a transmission gear on the third shaft. The third gear on the first shaft is transmission-connected to the third shaft through a transmission gear on the second shaft. The fourth gear on the first shaft is transmission-connected to the third shaft through another transmission gear on the second shaft. The left clutch on the first shaft, the middle clutch on the first shaft, and the right clutch on the first shaft are all communicated with the solenoid valve group.

[0011] The beneficial effects of adopting the above further scheme are as follows: By controlling the engagement or disengagement of the left clutch on the first shaft and the second gear on the first shaft, the direct transmission connection between the first shaft and the third shaft or the transmission connection between the first shaft and the third shaft through the second shaft can be realized, so as to control the output direction of the five shafts, and further realize the control of the forward gear and the reverse gear. The middle clutch on the first shaft and the right clutch on the first shaft realize two transmission connection modes with the second shaft, and further realize the setting of double forward gears, expanding the number of gears.

[0012] Further, the transmission gears on the second shaft include a first gear on the second shaft, a second gear set on the second shaft, and a third gear on the second shaft that are spaced apart. The first gear on the second shaft is fixedly sleeved on the second shaft, and the second gear set on the second shaft and the third gear on the second shaft are both rotatably arranged on the second shaft. The clutches on the second shaft include a left clutch on the second shaft and a right clutch on the second shaft. The left clutch on the second shaft is arranged beside the second gear set on the second shaft for engaging or disengaging with the second gear set on the second shaft. The right clutch on the second shaft is arranged beside the third gear on the second shaft for engaging or disengaging with the third gear on the second shaft. The first gear on the second shaft is constantly meshed with a transmission gear on the first shaft. The second gear set on the second shaft is meshed with a transmission gear on the first shaft and a transmission gear on the third shaft. The third gear on the second shaft is meshed with a transmission gear on the first shaft and a transmission gear on the third shaft. The left clutch on the second shaft and the right clutch on the second shaft are both communicated with the solenoid valve group.

[0013] The beneficial effects of adopting the above further solution are as follows: The second-axis left clutch and the second-axis right clutch respectively control the synchronous rotation of the second-axis second gear set and the second-axis third gear with the second axis, realizing two transmission paths of the second axis, and further realizing the setting of twice the number of forward gears, further expanding the number of gears.

[0014] Further, the second-axis second gear set includes a second-axis second left gear and a second-axis second right gear arranged at intervals. Both the second-axis second left gear and the second-axis second right gear are rotatably arranged on the second axis. The second-axis second left gear and the second-axis second right gear are fixedly connected through a bushing to achieve synchronous rotation. The second-axis second left gear meshes with a transmission gear on the third axis, and the second-axis second right gear meshes with a transmission gear on the first axis. The second-axis left clutch is arranged beside the second-axis second right gear for engaging or disengaging with the second-axis second right gear.

[0015] The beneficial effects of adopting the above further solution are as follows: The second-axis second left gear and the second-axis second right gear that rotate synchronously through the bushing can set the positions of the second-axis second left gear and the second-axis second right gear according to the setting positions of the transmission gears on the first axis and the third axis, so as to reasonably arrange the positions of the transmission gears on adjacent and mutually transmitting axes as needed, and avoid interference between the transmission gears.

[0016] Further, the transmission gears on the third axis include a third-axis first gear, a third-axis second gear, and a third-axis third gear arranged at intervals. The third-axis first gear, the third-axis second gear, and the third-axis third gear are all fixedly sleeved on the third axis. The third-axis first gear is constantly meshed with a transmission gear on the first axis. The third-axis second gear meshes with a transmission gear on the fourth axis. The third-axis third gear meshes with a transmission gear on the second axis and a transmission gear on the fourth axis.

[0017] The beneficial effects of adopting the above further solution are as follows: The third-axis first gear is used to directly mesh with the transmission gear on the first axis. When in reverse gear, the third axis is transmitted through the third-axis first gear and the first axis, simplifying the reverse gear implementation logic; the setting of the third-axis second gear is used for the transmission connection with the transmission gear on the fourth axis to facilitate the power transmission to the fourth axis; the setting of the third-axis third gear can directly transmit the power transmitted from the second axis to the transmission gear on the fourth axis.

[0018] Further, the transmission gears on the four-shaft include a four-shaft first gear, a four-shaft second gear, a four-shaft third gear and a four-shaft fourth gear which are arranged at intervals. The four-shaft first gear and the four-shaft fourth gear are both fixedly sleeved on the four-shaft, and the four-shaft second gear and the four-shaft third gear are both rotatably arranged on the four-shaft; the clutch on the four-shaft includes a four-shaft left clutch and a four-shaft right clutch, the four-shaft left clutch is arranged beside the four-shaft second gear for combining with or separating from the four-shaft second gear, the four-shaft right clutch is arranged beside the four-shaft third gear for combining with or separating from the four-shaft third gear, the four-shaft first gear and the four-shaft fourth gear are respectively meshed with the two transmission gears on the five-shaft, the four-shaft second gear and the four-shaft third gear are respectively meshed with the two transmission gears on the three-shaft, and the four-shaft left clutch and the four-shaft right clutch are both connected to the solenoid valve group.

[0019] The beneficial effect of adopting the above further scheme is: the first gear of the fourth axis and the fourth gear of the fourth axis are used to respectively connect with the transmission gear on the fifth axis, and the setting of the left clutch of the fourth axis and the right clutch of the fourth axis realizes two transmission paths of the three axes and the four axes, thereby realizing the setting of twice the forward gear or reverse gear, further expanding the number of gear positions.

[0020] Furthermore, the transmission gears on the five-axis include a first gear and a second gear of the five-axis which are arranged at intervals, and the first gear and the second gear of the five-axis are both rotatably arranged on the five-axis; the clutches on the five-axis include a left clutch and a right clutch of the five-axis, the left clutch of the five-axis is arranged next to the first gear of the five-axis for combining with or separating from the first gear of the five-axis, and the right clutch of the five-axis is arranged next to the second gear of the five-axis for combining with or separating from the second gear of the five-axis, the first gear of the five-axis and the second gear of the five-axis are respectively meshed with the two transmission gears on the four-axis, and the left clutch and the right clutch of the five-axis are both connected to the solenoid valve group.

[0021] The beneficial effect of adopting the above further scheme is that the five-axis left clutch and the five-axis right clutch realize two transmission paths with four axes. By controlling the five-axis left clutch and the five-axis right clutch respectively, the setting of double forward gear or reverse gear is achieved, further expanding the number of gear positions.

[0022] Furthermore, the gearbox housing includes a front cover and a rear cover fixedly connected by bolts, and the first shaft, the second shaft, the third shaft, the fourth shaft and the fifth shaft are all arranged between the front cover and the rear cover, and the two ends of the first shaft, the second shaft, the third shaft, the fourth shaft and the fifth shaft are rotatably connected to the front cover and the rear cover respectively.

[0023] The beneficial effects of adopting the above further scheme are as follows: It is convenient for the installation of each shaft, transmission gears and clutches.

[0024] Furthermore, both ends of the first shaft, the second shaft, the third shaft, the fourth shaft and the fifth shaft are respectively rotatably connected to the front cover and the rear cover through bearings.

[0025] The beneficial effects of adopting the above further scheme are as follows: It improves the rotational stability of each shaft, reduces rotational friction, decreases power loss and rotational wear of each shaft.

[0026] The present invention also provides a tractor to solve the above technical problems, including the full power shift transmission gearbox described above.

[0027] The beneficial effects of adopting the above scheme are as follows: Without increasing the structural complexity, the present invention significantly increases the number of gears, simplifies the transmission structure, greatly improves the power performance, economic performance and operation efficiency of the tractor; reduces the impact load during gear shifting; and can reduce the labor intensity of the operator. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] Figure 1 is a three-dimensional structural schematic diagram of the present invention;

[0029] Figure 2 is an internal structural schematic diagram of the present invention;

[0030] In the drawings, the list of components represented by each reference numeral is as follows:

[0031] 1. Transmission case body; 11. Front cover; 12. Rear cover;

[0032] 2. First shaft; 21. First gear of the first shaft; 22. Second gear of the first shaft; 23. Third gear of the first shaft; 24. Fourth gear of the first shaft; 25. Left clutch of the first shaft; 26. Middle clutch of the first shaft; 27. Right clutch of the first shaft;

[0033] 3. Second shaft; 31. First gear of the second shaft; 32. Second left gear of the second shaft; 33. Second right gear of the second shaft; 34. Bushing; 35. Third gear of the second shaft; 36. Left clutch of the second shaft; 37. Right clutch of the second shaft;

[0034] 4. Third shaft; 41. First gear of the third shaft; 42. Second gear of the third shaft; 43. Third gear of the third shaft;

[0035] 5. Fourth shaft; 51. First gear of the fourth shaft; 52. Second gear of the fourth shaft; 53. Third gear of the fourth shaft; 54. Fourth gear of the fourth shaft; 55. Left clutch of the fourth shaft; 56. Right clutch of the fourth shaft;

[0036] 6. Fifth axis; 61. First gear of fifth axis; 62. Second gear of fifth axis; 63. Left clutch of fifth axis; 64. Right clutch of fifth axis;

[0037] 7. Solenoid valve group. DETAILED DESCRIPTION

[0038] The principles and features of the present invention are described below in conjunction with the accompanying drawings. The examples given are only used to explain the present invention and are not used to limit the scope of the present invention.

[0039] Embodiment 1

[0040] like Figure 1 , Figure 2 As shown, the embodiment of the present invention discloses a full-power shift transmission gearbox, including a gearbox housing 1, wherein one shaft 2, two shafts 3, three shafts 4, four shafts 5 and five shafts 6 are rotatably arranged in parallel with each other in the gearbox housing 1, and the gearbox housing 1 includes a front cover 11 and a rear cover 12 fixedly connected by bolts, wherein the one shaft 2, the two shafts 3, the three shafts 4, the four shafts 5 and the five shafts 6 are all arranged between the front cover 11 and the rear cover 12, and the two ends of the one shaft 2, the two shafts 3, the three shafts 4, the four shafts 5 and the five shafts 6 are rotatably connected with the front cover 11 and the rear cover 12 respectively. Specifically, the two ends of the one shaft 2, the two shafts 3, the three shafts 4, the four shafts 5 and the five shafts 6 are rotatably connected with the front cover 11 and the rear cover 12 respectively through bearings, so as to improve the rotation stability of each shaft, reduce the rotation friction, and reduce the power loss and the rotation wear of each shaft.

[0041] The first shaft 2, the second shaft 3, the third shaft 4, the fourth shaft 5 and the fifth shaft 6 are respectively provided with a plurality of transmission gears, and the first shaft 2, the second shaft 3, the fourth shaft 5 and the fifth shaft 6 are respectively provided with a plurality of clutches for combining with the transmission gears. The gearbox housing 1 is provided with a solenoid valve group 7, and the input end of the solenoid valve group 7 is used to communicate with an external hydraulic source or an air source, and the output end of the solenoid valve group 7 is communicated with the clutch for respectively controlling each of the clutches to combine or separate with the transmission gear; the configuration of the solenoid valve group 7 to control the clutch to combine or separate with the transmission gear is as follows: in the forward gear, the first shaft 2, the second shaft 3, the third shaft 4, the fourth shaft 5 and the fifth shaft 6 are sequentially connected in transmission; in the reverse gear, the first shaft 2, the third shaft 4, the fourth shaft 5 and the fifth shaft 6 are sequentially connected in transmission.

[0042] In an embodiment of the present invention, the transmission gears on the first shaft 2 include a first gear 21, a second gear 22, a third gear 23, and a fourth gear 24 of the first shaft which are arranged at intervals. The first gear 21 of the first shaft is fixedly sleeved on the first shaft 2. The second gear 22, the third gear 23, and the fourth gear 24 of the first shaft are all rotatably connected to the first shaft 2. A left clutch 25 of the first shaft for engaging or disengaging with the second gear 22 of the first shaft is arranged beside the second gear 22 of the first shaft. A middle clutch 26 of the first shaft for engaging or disengaging with the third gear 23 of the first shaft is arranged beside the third gear 23 of the first shaft. A right clutch 27 of the first shaft for engaging or disengaging with the fourth gear 24 of the first shaft is arranged beside the fourth gear 24 of the first shaft.

[0043] The transmission gears on the second shaft 3 include a first gear 31, a second gear set, and a third gear 35 of the second shaft which are arranged at intervals. The first gear 31 of the second shaft is fixedly sleeved on the second shaft 3. The second gear set and the third gear 35 of the second shaft are both rotatably arranged on the second shaft 3. A left clutch 36 of the second shaft for engaging or disengaging with the second gear set of the second shaft is arranged beside the second gear set of the second shaft. A right clutch 37 of the second shaft for engaging or disengaging with the third gear 35 of the second shaft is arranged beside the third gear 35 of the second shaft.

[0044] The second gear set of the second shaft includes a second left gear 32 and a second right gear 33 which are arranged at intervals. The second left gear 32 and the second right gear 33 are both rotatably arranged on the second shaft 3. The second left gear 32 and the second right gear 33 are fixedly connected through a bushing 34 to achieve synchronous rotation.

[0045] The transmission gears on the third shaft 4 include a first gear 41, a second gear 42, and a third gear 43 of the third shaft which are arranged at intervals. The first gear 41, the second gear 42, and the third gear 43 of the third shaft are all fixedly sleeved on the third shaft 4.

[0046] The transmission gears on the fourth shaft 5 include a first gear 51, a second gear 52, a third gear 53, and a fourth gear 54 of the fourth shaft which are arranged at intervals. The first gear 51 and the fourth gear 54 of the fourth shaft are both fixedly sleeved on the fourth shaft 5. The second gear 52 and the third gear 53 of the fourth shaft are both rotatably arranged on the fourth shaft 5. A left clutch 55 of the fourth shaft for engaging or disengaging with the second gear 52 of the fourth shaft is arranged beside the second gear 52 of the fourth shaft. A right clutch 56 of the fourth shaft for engaging or disengaging with the third gear 53 of the fourth shaft is arranged beside the third gear 53 of the fourth shaft.

[0047] The transmission gears on the fifth shaft 6 include a fifth shaft first gear 61 and a fifth shaft second gear 62 that are spaced apart. Both the fifth shaft first gear 61 and the fifth shaft second gear 62 are rotatably provided on the fifth shaft 6. A fifth shaft left clutch 63 for engaging or disengaging with the fifth shaft first gear 61 is provided beside the fifth shaft first gear 61, and a fifth shaft right clutch 64 for engaging or disengaging with the fifth shaft second gear 62 is provided beside the fifth shaft second gear 62.

[0048] In an embodiment of the present invention,

[0049] The transmission relationship of the transmission gears on the first shaft 2 is as follows:

[0050] The first shaft first gear 21 and the second shaft first gear 31 are constantly meshed. Since the first shaft first gear 21 is fixedly sleeved on the first shaft 2, the rotation of the first shaft 2 will inevitably drive the rotation of the first shaft first gear 21; the first shaft second gear 22 and the third shaft first gear 41 are constantly meshed, the first shaft third gear 23 and the second shaft second right gear 33 are constantly meshed, and the first shaft fourth gear 24 and the second shaft third gear 35 are constantly meshed. When the first shaft left clutch 25 is engaged with the first shaft second gear 22, the first shaft second gear 22 rotates synchronously with the first shaft 2. When the first shaft left clutch 25 is disengaged from the first shaft second gear 22, the rotation of the first shaft 2 will not drive the first shaft second gear 22 to rotate synchronously; when the first shaft middle clutch 26 is engaged with the first shaft third gear 23, the first shaft third gear 23 rotates synchronously with the first shaft 2. When the first shaft middle clutch 26 is disengaged from the first shaft third gear 23, the rotation of the first shaft 2 will not drive the first shaft third gear 23 to rotate synchronously; when the first shaft right clutch 27 is engaged with the first shaft fourth gear 24, the first shaft fourth gear 24 rotates synchronously with the first shaft 2. When the first shaft right clutch 27 is disengaged from the first shaft fourth gear 24, the rotation of the first shaft 2 will not drive the first shaft fourth gear 24 to rotate.

[0051] By controlling the engagement or disengagement of the first shaft left clutch 25 and the first shaft second gear 22, the direct transmission connection between the first shaft 2 and the third shaft 4 or the transmission connection between the first shaft 2 and the third shaft 4 through the second shaft 3 can be realized, so as to control the output direction of the fifth shaft 6, and further realize the control of the forward gear and the reverse gear; the first shaft middle clutch 26 and the first shaft right clutch 27 realize two transmission connection methods with the second shaft 3, and further realize the setting of two forward gears, expanding the number of gears.

[0052] The transmission relationship of the transmission gears on the second shaft 3 is as follows:

[0053] The second-axis first gear 31 is constantly meshed with the first-axis first gear 21. The first-axis first gear 21 rotates synchronously with the first axis 2. The first-axis first gear 21 drives the second-axis first gear 31 to rotate. Since the second-axis first gear 31 is fixedly sleeved on the second axis 3, the second axis 3 rotates synchronously with the rotation of the second-axis first gear 31. The second-axis second left gear 32 is constantly meshed with the third-axis first gear 41. The second-axis second left gear 32 rotates synchronously with the second-axis second right gear 33 through a bushing 34. The second-axis second right gear 33 is constantly meshed with the first-axis third gear 23. The second-axis third gear 35 is constantly meshed with both the first-axis fourth gear 24 and the third-axis third gear 43. When the second-axis left clutch 36 is combined with the second-axis second right gear 33, the rotation of the second axis 3 drives the second-axis second right gear 33 and the second-axis second left gear 32 to rotate synchronously with the second axis 3. When the second-axis left clutch 36 is separated from the second-axis second right gear 33, the rotation of the second axis 3 cannot drive the second-axis second right gear 33 and the second-axis second left gear 32 to rotate synchronously. When the second-axis right clutch 37 is combined with the second-axis third gear 35 and the first-axis right clutch 27 is separated from the first-axis fourth gear 24, the rotation of the second axis 3 drives the rotation of the second-axis third gear 35, thereby realizing the transmission between the second-axis third gear 35 and the third-axis third gear 43.

[0054] The second-axis left clutch 36 and the second-axis right clutch 37 respectively control the synchronous rotation of the second-axis second gear set and the second-axis third gear 35 with the second axis 3, realizing two transmission paths of the second axis 3, and further realizing the setting of twice the number of forward gears, further expanding the number of gears.

[0055] The second-axis second left gear 32 and the second-axis second right gear 33 that rotate synchronously through the bushing 34 can set the positions of the second-axis second left gear 32 and the second-axis second right gear 33 according to the set positions of the transmission gears on the first axis 2 and the third axis 4, so as to reasonably arrange the positions of the transmission gears on adjacent and mutually transmitting axes as needed, avoiding interference between the transmission gears.

[0056] The transmission relationship of the transmission gears on the third axis 4 is as follows:

[0057] The third-axis first gear 41 is constantly meshed with the first-axis second gear 22. The third-axis first gear 41 is constantly meshed with the second-axis second left gear 32. The third-axis second gear 42 is constantly meshed with the fourth-axis second gear 52. The third-axis third gear 43 is constantly meshed with the fourth-axis third gear 53. The third-axis third gear 43 is constantly meshed with the second-axis third gear 35.

[0058] The three-axis first gear 41 is used to directly mesh with the transmission gear on the first shaft 2. When in reverse gear, the three-axis 4 is driven by the first shaft 2 through the three-axis first gear 41, simplifying the implementation logic of the reverse gear; the three-axis second gear 42 is provided for driving connection with the transmission gear on the fourth shaft 5, facilitating the power transmission to the fourth shaft 5; the three-axis third gear 43 can directly transmit the power transmitted from the second shaft 3 to the transmission gear on the fourth shaft 5.

[0059] The transmission relationship of the transmission gear on the fourth shaft 5 is as follows:

[0060] The fourth-axis first gear 51 is constantly meshed with the fifth-axis first gear 61, the fourth-axis second gear 52 is constantly meshed with the three-axis second gear 42, the fourth-axis third gear 53 is constantly meshed with the three-axis third gear 43, and the fourth-axis fourth gear 54 is constantly meshed with the fifth-axis second gear 62; when the fourth-axis left clutch 55 is combined with the fourth-axis second gear 52 and the fourth-axis right clutch 56 is separated from the fourth-axis third gear 53, the three-axis 4 is transmitted to the fourth shaft 5 through the three-axis second gear 42 and the fourth-axis second gear 52, thereby driving the fourth shaft 5 to rotate; when the fourth-axis right clutch 56 is combined with the fourth-axis third gear 53 and the fourth-axis left clutch 55 is separated from the fourth-axis second gear 52, the three-axis 4 is transmitted to the fourth shaft 5 through the three-axis third gear 43 and the fourth-axis third gear 53, thereby driving the fourth shaft 5 to rotate.

[0061] The fourth-axis first gear 51 and the fourth-axis fourth gear 54 are used to respectively drive and connect with the transmission gears on the fifth shaft 6. The settings of the fourth-axis left clutch 55 and the fourth-axis right clutch 56 realize two transmission paths between the three-axis 4 and the fourth shaft 5, and further realize the setting of twice the number of forward gears or reverse gears, further expanding the number of gears.

[0062] The transmission relationship of the transmission gear on the fifth shaft 6 is as follows:

[0063] The fifth-axis first gear 61 is constantly meshed with the fourth-axis first gear 51, and the fifth-axis second gear 62 is constantly meshed with the fourth-axis fourth gear 54. When the fifth-axis left clutch 63 is combined with the fifth-axis first gear 61 and the fifth-axis right clutch 64 is separated from the fifth-axis second gear 62, the fourth shaft 5 is transmitted to the fifth shaft 6 through the fourth-axis first gear 51 and the fifth-axis first gear 61, driving the fifth shaft 6 to rotate; when the fifth-axis left clutch 63 is separated from the fifth-axis first gear 61 and the fifth-axis right clutch 64 is combined with the fifth-axis second gear 62, the fourth shaft 5 is transmitted to the fifth shaft 6 through the fourth-axis fourth gear 54 and the fifth-axis second gear 62, driving the fifth shaft 6 to rotate.

[0064] The five-axis left clutch 63 and the five-axis right clutch 64 achieve two transmission paths with the four-axis 5. By controlling the five-axis left clutch 63 and the five-axis right clutch 64 respectively, a two-fold forward or reverse gear setting is achieved, further expanding the number of gears.

[0065] The following list shows the engagement status of each clutch at each gear position:

[0066] 1F 1M 1R 2F 2R 4F 4R 5F 5R 4R √ √ √ 3R √ √ √ 2R √ √ √ 1R √ √ √ N √ F1 √ √ √ F2 √ √ √ F3 √ √ √ F4 √ √ √ F5 √ √ √ F6 √ √ √ F7 √ √ √ F8 √ √ √ F9 √ √ √ F10 √ √ √ F11 √ √ √ F12 √ √ √ F13 √ √ √ F14 √ √ √ F15 √ √ √ F16 √ √ √

[0067] In the above table, 1F represents the first-axis left clutch 25, 1M represents the first-axis middle clutch 26, 1R represents the first-axis right clutch 27, 2F represents the second-axis left clutch 36, 2R represents the second-axis right clutch 37, 4F represents the four-axis left clutch 55, 4R represents the four-axis right clutch 56, 5F represents the five-axis left clutch 63, and 5R represents the five-axis right clutch 64.

[0068] 4R represents reverse fourth gear, 3R represents reverse third gear, 2R represents reverse second gear, 1R represents reverse first gear, N represents neutral, 1F represents forward first gear, 2F represents forward second gear, 3F represents forward third gear, 4F represents forward fourth gear, 5F represents forward fifth gear, 6F represents forward sixth gear, 7F represents forward seventh gear, 8F represents forward eighth gear, 9F represents forward ninth gear, 10F represents forward tenth gear, 11F represents forward eleventh gear, 12F represents forward twelfth gear, 13F represents forward thirteenth gear, 14F represents forward fourteenth gear, F15 represents forward fifteenth gear, and F16 represents forward sixteenth gear.

[0069] "√" indicates that the corresponding clutch is in the engaged state when in that gear position.

[0070] The transmission relationship of each transmission gear at each gear position is as follows:

[0071] Reverse fourth gear (4R): The first axis 2 rotates - the first-axis left clutch 25 engages with the first-axis second gear 22 - the first-axis first gear 21 drives the third-axis first gear 41 to rotate - the third axis 4 rotates - the third-axis third gear 43 drives the fourth-axis third gear 53 to rotate - the fourth-axis right clutch 56 engages with the fourth-axis third gear 53 - the fourth axis 5 rotates - the fourth-axis fourth gear 54 rotates - the five-axis right clutch 64 engages with the five-axis second gear 62 - the fifth axis 6 rotates for output.

[0072] Reverse third gear (3R): The first axis 2 rotates - the first-axis left clutch 25 engages with the first-axis second gear 22 - the first-axis first gear 21 drives the third-axis first gear 41 to rotate - the third axis 4 rotates - the third-axis third gear 43 drives the fourth-axis third gear 53 to rotate - the fourth-axis right clutch 56 engages with the fourth-axis third gear 53 - the fourth axis 5 rotates - the fourth-axis first gear 51 rotates - the five-axis left clutch 63 engages with the five-axis first gear 61 - the fifth axis 6 rotates for output.

[0073] Reverse Second Gear (2R): The first shaft 2 rotates - the left clutch 25 of the first shaft engages with the second gear 22 of the first shaft - the second gear 22 of the first shaft drives the first gear 41 of the third shaft to rotate - the third shaft 4 rotates - the second gear 42 of the third shaft drives the second gear 52 of the fourth shaft to rotate - the left clutch 55 of the fourth shaft engages with the second gear 52 of the fourth shaft - the fourth shaft 5 rotates - the fourth gear 54 of the fourth shaft rotates - the fourth gear 54 of the fourth shaft drives the second gear 62 of the fifth shaft to rotate - the right clutch 64 of the fifth shaft engages with the second gear 62 of the fifth shaft - the fifth shaft 6 rotates for output.

[0074] Reverse First Gear (1R): The first shaft 2 rotates - the left clutch 25 of the first shaft engages with the second gear 22 of the first shaft - the second gear 22 of the first shaft drives the first gear 41 of the third shaft to rotate - the third shaft 4 rotates - the second gear 42 of the third shaft drives the second gear 52 of the fourth shaft to rotate - the left clutch 55 of the fourth shaft engages with the second gear 52 of the fourth shaft - the fourth shaft 5 rotates - the first gear 51 of the fourth shaft rotates - the first gear 51 of the fourth shaft drives the first gear 61 of the fifth shaft to rotate - the left clutch 63 of the fifth shaft engages with the first gear 61 of the fifth shaft - the fifth shaft 6 rotates for output.

[0075] Neutral (N): The first shaft 2 rotates - the first shaft 2 rotates - the first gear 21 of the first shaft rotates - the first gear 21 of the first shaft drives the first gear 31 of the second shaft to rotate - the second shaft 3 rotates - the second gear of the second shaft 3 drives the first gear 41 of the third shaft to rotate - the third shaft 4 rotates.

[0076] Forward First Gear (F1): The first shaft 2 rotates - the first gear 21 of the first shaft rotates - the first gear 21 of the first shaft drives the first gear 31 of the second shaft to rotate - the second shaft 3 rotates - the left clutch 36 of the second shaft engages with the second gear set of the second shaft - the second gear set of the second shaft rotates - the second gear set of the second shaft drives the first gear 41 of the third shaft to rotate - the third shaft 4 rotates - the left clutch 55 of the fourth shaft engages with the second gear 52 of the fourth shaft - the fourth shaft 5 rotates - the first gear 51 of the fourth shaft drives the first gear 61 of the fifth shaft to rotate - the left clutch 63 of the fifth shaft engages with the first gear 61 of the fifth shaft - the fifth shaft 6 rotates for output.

[0077] Forward Second Gear (F2): The first shaft 2 rotates - the middle clutch 26 of the first shaft engages with the third gear 23 of the first shaft - the third gear 23 of the first shaft drives the second gear set of the second shaft to rotate - the second gear set of the second shaft drives the first gear 41 of the third shaft to rotate - the third shaft 4 rotates - the left clutch 55 of the fourth shaft engages with the second gear 52 of the fourth shaft - the fourth shaft 5 rotates - the first gear 51 of the fourth shaft drives the first gear 61 of the fifth shaft to rotate - the left clutch 63 of the fifth shaft engages with the first gear 61 of the fifth shaft - the fifth shaft 6 rotates for output.

[0078] Forward third gear (F3): The first shaft 2 rotates - the first gear 21 on the first shaft rotates - the first gear 21 on the first shaft drives the first gear 31 on the second shaft to rotate - the second shaft 3 rotates - the right clutch 37 on the second shaft engages the third gear 35 on the second shaft - the third gear 35 on the second shaft drives the third gear 43 on the third shaft to rotate - the third shaft 4 rotates - the second gear 42 on the third shaft drives the second gear 52 on the fourth shaft to rotate - the left clutch 55 on the fourth shaft engages the second gear 52 on the fourth shaft - the fourth shaft 5 rotates - the first gear 51 on the fourth shaft rotates - the first gear 51 on the fourth shaft drives the first gear 61 on the fifth shaft to rotate - the left clutch 63 on the fifth shaft engages the first gear 61 on the fifth shaft - the fifth shaft 6 rotates for output.

[0079] Forward fourth gear (F4): The first shaft 2 rotates - the right clutch 27 on the first shaft engages the fourth gear 24 on the first shaft - the fourth gear 24 on the first shaft drives the third gear 35 on the second shaft to rotate - the third gear 35 on the second shaft drives the third gear 43 on the third shaft to rotate - the third shaft 4 rotates - the left clutch 55 on the fourth shaft engages the second gear 52 on the fourth shaft - the fourth shaft 5 rotates - the first gear 51 on the fourth shaft drives the first gear 61 on the fifth shaft to rotate - the left clutch 63 on the fifth shaft engages the first gear 61 on the fifth shaft - the fifth shaft 6 rotates for output.

[0080] Forward fifth gear (F5): The first shaft 2 rotates - the first gear 21 on the first shaft rotates - the first gear 21 on the first shaft drives the first gear 31 on the second shaft to rotate - the second shaft 3 rotates - the left clutch 36 on the second shaft engages the second gear set on the second shaft - the second gear set on the second shaft rotates - the second gear set on the second shaft drives the first gear 41 on the third shaft to rotate - the third shaft 4 rotates - the right clutch 56 on the fourth shaft engages the third gear 53 on the fourth shaft - the third gear 53 on the fourth shaft drives the third gear 43 on the third shaft to rotate - the fourth shaft 5 rotates - the first gear 51 on the fourth shaft drives the first gear 61 on the fifth shaft to rotate - the left clutch 63 on the fifth shaft engages the first gear 61 on the fifth shaft - the fifth shaft 6 rotates for output.

[0081] Forward sixth gear (F6): The first shaft 2 rotates - the first gear 21 on the first shaft rotates - the first gear 21 on the first shaft drives the first gear 31 on the second shaft to rotate - the second shaft 3 rotates - the left clutch 36 on the second shaft engages the second gear set on the second shaft - the second gear set on the second shaft rotates - the second gear set on the second shaft drives the first gear 41 on the third shaft to rotate - the third shaft 4 rotates - the second gear 52 on the fourth shaft drives the second gear 42 on the third shaft to rotate - the left clutch 55 on the fourth shaft engages the second gear 52 on the fourth shaft - the fourth shaft 5 rotates - the fourth gear 54 on the fourth shaft drives the second gear 62 on the fifth shaft to rotate - the right clutch 64 on the fifth shaft engages the second gear 62 on the fifth shaft - the fifth shaft 6 rotates for output.

[0082] Forward Seventh Gear (F7): The first shaft 2 rotates - the clutch 26 in the first shaft engages with the third gear 23 of the first shaft - the third gear 23 of the first shaft drives the second gear set of the second shaft to rotate - the second gear set of the second shaft drives the first gear 41 of the third shaft to rotate - the third shaft 4 rotates - the third gear 43 of the third shaft drives the third gear 53 of the fourth shaft to rotate - the right clutch 56 of the fourth shaft engages with the third gear 53 of the fourth shaft - the fourth shaft 5 rotates - the first gear 51 of the fourth shaft drives the first gear 61 of the fifth shaft to rotate - the left clutch 63 of the fifth shaft engages with the first gear 61 of the fifth shaft - the fifth shaft 6 rotates for output.

[0083] Forward Eighth Gear (F8): The first shaft 2 rotates - the clutch 26 in the first shaft engages with the third gear 23 of the first shaft - the third gear 23 of the first shaft drives the second gear set of the second shaft to rotate - the second gear set of the second shaft drives the first gear 41 of the third shaft to rotate - the third shaft 4 rotates - the second gear 42 of the third shaft drives the second gear 52 of the fourth shaft to rotate - the left clutch 55 of the fourth shaft engages with the second gear 52 of the fourth shaft - the fourth shaft 5 rotates - the fourth gear 54 of the fourth shaft drives the second gear 62 of the fifth shaft to rotate - the right clutch 64 of the fifth shaft engages with the second gear 62 of the fifth shaft - the fifth shaft 6 rotates for output.

[0084] Forward Ninth Gear (F9): The first shaft 2 rotates - the first gear 21 of the first shaft rotates - the first gear 21 of the first shaft drives the first gear 31 of the second shaft to rotate - the second shaft 3 rotates - the right clutch 37 of the second shaft engages with the third gear 35 of the second shaft - the third gear 35 of the second shaft rotates - the third gear 35 of the second shaft drives the third gear 43 of the third shaft to rotate - the third shaft 4 rotates - the third gear 43 of the third shaft drives the third gear 53 of the fourth shaft to rotate - the right clutch 56 of the fourth shaft engages with the third gear 53 of the fourth shaft - the fourth shaft 5 rotates - the first gear 51 of the fourth shaft drives the first gear 61 of the fifth shaft to rotate - the left clutch 63 of the fifth shaft engages with the first gear 61 of the fifth shaft - the fifth shaft 6 rotates for output.

[0085] Forward Tenth Gear (F10): The first shaft 2 rotates - the first gear 21 of the first shaft rotates - the first gear 21 of the first shaft drives the first gear 31 of the second shaft to rotate - the second shaft 3 rotates - the right clutch 37 of the second shaft engages with the third gear 35 of the second shaft - the third gear 35 of the second shaft drives the third gear 43 of the third shaft to rotate - the third shaft 4 rotates - the second gear 42 of the third shaft drives the second gear 52 of the fourth shaft to rotate - the left clutch 55 of the fourth shaft engages with the second gear 52 of the fourth shaft - the fourth shaft 5 rotates - the fourth gear 54 of the fourth shaft drives the second gear 62 of the fifth shaft to rotate - the right clutch 64 of the fifth shaft engages with the second gear 62 of the fifth shaft - the fifth shaft 6 rotates for output.

[0086] Forward 11th gear (F11): The first shaft 2 rotates - the right clutch 27 of the first shaft engages with the fourth gear 24 of the first shaft - the fourth gear 24 of the first shaft drives the third gear 35 of the second shaft to rotate - the third gear 35 of the second shaft drives the third gear 43 of the third shaft to rotate - the third shaft 4 rotates - the third gear 43 of the third shaft drives the third gear 53 of the fourth shaft to rotate - the right clutch 56 of the fourth shaft engages with the third gear 53 of the fourth shaft - the fourth shaft 5 rotates - the first gear 51 of the fourth shaft drives the first gear 61 of the fifth shaft to rotate - the left clutch 63 of the fifth shaft engages with the first gear 61 of the fifth shaft - the fifth shaft 6 rotates for output.

[0087] Forward 12th gear (F12): The first shaft 2 rotates - the right clutch 27 of the first shaft engages with the fourth gear 24 of the first shaft - the fourth gear 24 of the first shaft rotates - the fourth gear 24 of the first shaft drives the third gear 35 of the second shaft to rotate - the third gear 35 of the second shaft drives the third gear 43 of the third shaft to rotate - the third shaft 4 rotates - the right clutch 56 of the fourth shaft engages with the third gear 53 of the fourth shaft - the third gear 53 of the fourth shaft drives the third gear 43 of the third shaft to rotate - the fourth shaft 5 rotates - the fourth gear 54 of the fourth shaft drives the second gear 62 of the fifth shaft to rotate - the right clutch 64 of the fifth shaft engages with the second gear 62 of the fifth shaft - the fifth shaft 6 rotates for output.

[0088] Forward 13th gear (F13): The first shaft 2 rotates - the first gear 21 of the first shaft rotates - the first gear 21 of the first shaft drives the first gear 31 of the second shaft to rotate - the second shaft 3 rotates - the left clutch 36 of the second shaft engages with the second gear set of the second shaft - the second gear set of the second shaft rotates - the second gear set of the second shaft drives the first gear 41 of the third shaft to rotate - the third shaft 4 rotates - the right clutch 56 of the fourth shaft engages with the third gear 53 of the fourth shaft - the third gear 53 of the fourth shaft drives the third gear 43 of the third shaft to rotate - the fourth shaft 5 rotates - the fourth gear 54 of the fourth shaft drives the second gear 62 of the fifth shaft to rotate - the right clutch 64 of the fifth shaft engages with the second gear 62 of the fifth shaft - the fifth shaft 6 rotates for output.

[0089] Forward 14th gear (F14): The first shaft 2 rotates - the middle clutch 26 of the first shaft engages with the third gear 23 of the first shaft - the third gear 23 of the first shaft drives the second gear set of the second shaft - the second gear set of the second shaft drives the first gear 41 of the third shaft to rotate - the third shaft 4 rotates - the third gear 43 of the third shaft drives the third gear 53 of the fourth shaft to rotate - the right clutch 56 of the fourth shaft engages with the third gear 53 of the fourth shaft - the fourth shaft 5 rotates - the fourth gear 54 of the fourth shaft drives the second gear 62 of the fifth shaft to rotate - the right clutch 64 of the fifth shaft engages with the second gear 62 of the fifth shaft - the fifth shaft 6 rotates for output.

[0090] Forward 15th gear (F15): The first shaft 2 rotates - the first gear 21 on the first shaft rotates - the first gear 21 on the first shaft drives the first gear 31 on the second shaft to rotate - the second shaft 3 rotates - the right clutch 37 on the second shaft engages the third gear 35 on the second shaft - the third gear 35 on the second shaft drives the third gear 43 on the third shaft to rotate - the third shaft 4 rotates - the third gear 43 on the third shaft drives the third gear 53 on the fourth shaft to rotate - the right clutch 56 on the fourth shaft engages the third gear 53 on the fourth shaft - the fourth shaft 5 rotates - the fourth gear 54 on the fourth shaft drives the second gear 62 on the fifth shaft to rotate - the right clutch 64 on the fifth shaft engages the second gear 62 on the fifth shaft - the fifth shaft 6 rotates for output.

[0091] Forward 16th gear (F16): The first shaft 2 rotates - the right clutch 27 on the first shaft engages the fourth gear 24 on the first shaft - the fourth gear 24 on the first shaft drives the third gear 35 on the second shaft to rotate - the third gear 35 on the second shaft drives the third gear 43 on the third shaft to rotate - the third shaft 4 rotates - the second gear 42 on the third shaft drives the second gear 52 on the fourth shaft to rotate - the left clutch 55 on the fourth shaft engages the second gear 52 on the fourth shaft - the fourth shaft 5 rotates - the fourth gear 54 on the fourth shaft drives the second gear 62 on the fifth shaft to rotate - the right clutch 64 on the fifth shaft engages the second gear 62 on the fifth shaft - the fifth shaft 6 rotates for output.

[0092] During assembly, the first shaft 2 is connected to the power source, and the fifth shaft 6 is connected to the load end as the output shaft.

[0093] In the embodiment of the present invention, different transmission ratios are achieved by setting the number of teeth of different transmission gears. In an embodiment of the present invention, the number of teeth of the second gear 22 on the first shaft is 51, the number of teeth of the first gear 21 on the first shaft and the first gear 41 on the third shaft is 46, the number of teeth of the first gear 31 on the second shaft is 41, the number of teeth of the second left gear 32 on the second shaft is 30, the number of teeth of the second right gear 33 on the second shaft and the third gear 35 on the second shaft is 37, the number of teeth of the second gear 42 on the third shaft is 21, the number of teeth of the first gear 51 on the fourth shaft is 26, the number of teeth of the second gear 52 on the fourth shaft and the first gear 61 on the fifth shaft is 52, the number of teeth of the third gear 23 on the first shaft and the fourth gear 24 on the first shaft is 50, the number of teeth of the third gear 43 on the third shaft is 39, the number of teeth of the fourth gear 54 on the fourth shaft is 42, the number of teeth of the third gear 53 on the fourth shaft is 48, and the number of teeth of the second gear 62 on the fifth shaft is 38. Specifically, different numbers of teeth can also be set according to actual transmission requirements.

[0094] The solenoid valve group 7 receives a shift signal through an external controller, drives the corresponding transmission gear to engage or disengage with the corresponding clutch. During operation, the lubrication system is used to reduce frictional losses, and the solenoid valve group 7 detects the throttle data to dynamically adjust the shift force.

[0095] The present invention controls the clutches on each shaft through the solenoid valve group 7, so as to control each clutch to be combined with or separated from the corresponding transmission gear respectively, and further realize multiple transmission paths, achieving a significant increase in the number of gears without increasing the structural complexity; the solenoid valve group 7 has a short response time, fast shifting speed, no power interruption during the shifting process, reduces energy consumption, and improves the shifting smoothness and efficiency; by controlling whether the three-axis 4 is on the transmission path, the forward and reverse rotations of the output of the five-axis 6 are realized, and further the control of the forward gear and the reverse gear is realized, avoiding the additional gear set or planetary gear train required for the reverse gear in the prior art, and simplifying the transmission structure.

[0096] The solenoid valve group 7 precisely controls the gear shaft clutch through hydraulic / pneumatic pressure, with a response time ≤ 50 ms, and the power transmission is continuous during the shifting process, avoiding the jerks or power interruption problems of traditional mechanical shifting, and is especially suitable for scenarios with high requirements for operation continuity (such as agricultural machinery operations).

[0097] In this embodiment, the front cover 11 and the rear cover 12 are made of lightweight materials and the internal reinforcing rib design is optimized, and at the same time, a sealing structure (such as a rubber ring) is integrated. The overall weight of the device is reduced by ≥ 20%, and the closed shell effectively resists dust, moisture and mechanical shocks, extends the service life, and reduces the maintenance frequency.

[0098] This embodiment directly reverses the output direction by the meshing path of the transmission gear on the three-axis 4, replacing the additional gear set or planetary gear train required for the traditional reverse gear, reducing the number of parts and the assembly complexity, reducing the manufacturing cost by 10% - 15%, and at the same time reducing the failure points.

[0099] Embodiment Two

[0100] This embodiment discloses a tractor, including the full-power shift transmission gearbox in the above embodiment.

[0101] This embodiment significantly increases the number of gears without increasing the structural complexity, simplifies the transmission structure, greatly improves the power performance, economic performance and operation efficiency of the tractor; reduces the impact load during shifting; can reduce the labor intensity of the operator.

[0102] In the description of the present invention, it should be understood that the orientation or positional relationship indicated by the terms "center", "length", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "inner", "outer", "peripheral side", "circumferential direction", etc. is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the system or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as a limitation to the present invention.

[0103] In the description of the present invention, the meaning of "a plurality of" is at least two, such as two, three, etc., unless otherwise specifically defined.

[0104] In the present invention, unless otherwise clearly specified and defined, terms such as "installed", "connected", "connected to", "fixed", etc. should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or integrated; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, and it can be the communication inside two components or the interaction relationship between two components, unless otherwise clearly defined. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0105] In the description of this specification, the description with reference to terms such as "an embodiment", "some embodiments", "examples", "specific examples", or "some examples" means that the specific features, structures, materials, or characteristics described in connection with the embodiment or example are included in at least one embodiment or example of the present invention. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials, or characteristics described can be combined in a suitable manner in any one or more embodiments or examples. In addition, without contradiction, those skilled in the art can combine and combine the different embodiments or examples described in this specification and the features of different embodiments or examples.

[0106] The above are only the preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. A full power shift transmission gearbox, characterized in that, The invention comprises a gearbox housing (1), wherein one shaft (2), two shafts (3), three shafts (4), four shafts (5) and five shafts (6) are rotatably arranged in parallel with each other in the gearbox housing (1), and a plurality of transmission gears are respectively arranged on the one shaft (2), the two shafts (3), the three shafts (4), the four shafts (5) and the five shafts (6), and a plurality of clutches for combining with the transmission gears are respectively arranged on the one shaft (2), the two shafts (3), the four shafts (5) and the five shafts (6), and a solenoid valve group (7) is arranged on the gearbox housing (1), and the solenoid valve group (7) is arranged on the solenoid valve group (7). The input end of the solenoid valve group (7) is used to communicate with an external hydraulic source or air source, and the output end of the solenoid valve group (7) is connected to the clutch to respectively control the engagement or separation of each of the clutches with the transmission gear; the configuration of the solenoid valve group (7) controlling the engagement or separation of the clutches with the transmission gear is as follows: in the forward gear, the first shaft (2), the second shaft (3), the third shaft (4), the fourth shaft (5) and the fifth shaft (6) are sequentially connected in transmission; in the reverse gear, the first shaft (2), the third shaft (4), the fourth shaft (5) and the fifth shaft (6) are sequentially connected in transmission.

2. The full power shift transmission gearbox according to claim 1, characterized in that, The transmission gear on the shaft (2) comprises a first shaft gear (21), a second shaft gear (22), a third shaft gear (23) and a fourth shaft gear (24) which are arranged at intervals, the first shaft gear (21) is fixedly sleeved on the shaft (2), the second shaft gear (22), the third shaft gear (23) and the fourth shaft gear (24) are all rotatably connected to the shaft (2); the clutch on the shaft (2) comprises a left shaft clutch (25), a middle shaft clutch (26) and a right shaft clutch (27), the left shaft clutch (25) is arranged beside the second shaft gear (22) for engaging with or disengaging from the second shaft gear (22), the middle shaft clutch (26) is arranged beside the third shaft gear (23) for engaging with or disengaging from the third shaft gear (23), The first shaft right clutch (27) is arranged beside the first shaft fourth gear (24) and is used for combining with or separating from the first shaft fourth gear (24); the first shaft first gear (21) is constantly meshed with a transmission gear on the second shaft (3); the first shaft second gear (22) is constantly meshed with a transmission gear on the third shaft (4); the first shaft third gear (23) is transmission-connected to the third shaft (4) through a transmission gear on the second shaft (3); the first shaft fourth gear (24) is transmission-connected to the third shaft (4) through another transmission gear on the second shaft (3); the first shaft left clutch (25), the first shaft middle clutch (26) and the first shaft right clutch (27) are all connected to the solenoid valve group (7).

3. The full-power shift transmission gearbox according to claim 1, characterized in that, The transmission gears on the second shaft (3) include a first second-shaft gear (31), a second second-shaft gear set, and a third second-shaft gear (35) that are spaced apart. The first second-shaft gear (31) is fixedly sleeved on the second shaft (3). The second second-shaft gear set and the third second-shaft gear (35) are both rotatably arranged on the second shaft (3). The clutch on the second shaft (3) includes a left second-shaft clutch (36) and a right second-shaft clutch (37). The left second-shaft clutch (36) is arranged beside the second second-shaft gear set and is used to engage or disengage with the second second-shaft gear set. The right second-shaft clutch (37) is arranged beside the third second-shaft gear (35) and is used to engage or disengage with the third second-shaft gear (35). The first second-shaft gear (31) is constantly meshed with a transmission gear on the first shaft (2). The second second-shaft gear set is meshed with a transmission gear on the first shaft (2) and a transmission gear on the third shaft (4). The third second-shaft gear (35) is meshed with a transmission gear on the first shaft (2) and a transmission gear on the third shaft (4). The left second-shaft clutch (36) and the right second-shaft clutch (37) are both connected to the solenoid valve group (7).

4. A full power shift transmission gearbox according to claim 3, characterized in that, The second second-shaft gear set includes a left second second-shaft gear (32) and a right second second-shaft gear (33) that are spaced apart. The left second second-shaft gear (32) and the right second second-shaft gear (33) are both rotatably arranged on the second shaft (3). The left second second-shaft gear (32) and the right second second-shaft gear (33) are fixedly connected through a bushing (34) to achieve synchronous rotation. The left second second-shaft gear (32) is meshed with a transmission gear on the third shaft (4). The right second second-shaft gear (33) is meshed with a transmission gear on the first shaft (2). The left second-shaft clutch (36) is arranged beside the right second second-shaft gear (33) and is used to engage or disengage with the right second second-shaft gear (33).

5. A full power shift transmission gearbox according to claim 1, characterized in that, The transmission gears on the third shaft (4) include a first third-shaft gear (41), a second third-shaft gear (42), and a third third-shaft gear (43) that are spaced apart. The first third-shaft gear (41), the second third-shaft gear (42), and the third third-shaft gear (43) are all fixedly sleeved on the third shaft (4). The first third-shaft gear (41) is constantly meshed with a transmission gear on the first shaft (2). The second third-shaft gear (42) is meshed with a transmission gear on the fourth shaft (5). The third third-shaft gear (43) is meshed with a transmission gear on the second shaft (3) and a transmission gear on the fourth shaft (5).

6. The full-power shift transmission gearbox according to claim 1, characterized in that, The transmission gears on the four-axis (5) include a four-axis first gear (51), a four-axis second gear (52), a four-axis third gear (53), and a four-axis fourth gear (54) that are spaced apart. The four-axis first gear (51) and the four-axis fourth gear (54) are both fixedly sleeved on the four-axis (5), and the four-axis second gear (52) and the four-axis third gear (53) are both rotatably arranged on the four-axis (5). The clutch on the four-axis (5) includes a four-axis left clutch (55) and a four-axis right clutch (56). The four-axis left clutch (55) is arranged beside the four-axis second gear (52) for engaging or disengaging with the four-axis second gear (52), and the four-axis right clutch (56) is arranged beside the four-axis third gear (53) for engaging or disengaging with the four-axis third gear (53). The four-axis first gear (51) and the four-axis fourth gear (54) are respectively meshed with two transmission gears on the five-axis (6), the four-axis second gear (52) and the four-axis third gear (53) are respectively meshed with two transmission gears on the three-axis (4), and both the four-axis left clutch (55) and the four-axis right clutch (56) are in communication with the solenoid valve group (7).

7. A full power shift transmission gearbox according to claim 1, characterized in that, The transmission gears on the five-axis (6) include a five-axis first gear (61) and a five-axis second gear (62) that are spaced apart. The five-axis first gear (61) and the five-axis second gear (62) are both rotatably arranged on the five-axis (6). The clutch on the five-axis (6) includes a five-axis left clutch (63) and a five-axis right clutch (64). The five-axis left clutch (63) is arranged beside the five-axis first gear (61) for engaging or disengaging with the five-axis first gear (61), and the five-axis right clutch (64) is arranged beside the five-axis second gear (62) for engaging or disengaging with the five-axis second gear (62). The five-axis first gear (61) and the five-axis second gear (62) are respectively meshed with two transmission gears on the four-axis (5), and both the five-axis left clutch (63) and the five-axis right clutch (64) are in communication with the solenoid valve group (7).

8. A full power shift transmission gearbox according to any one of claims 1 to 7, characterized in that, The gearbox housing (1) includes a front cover (11) and a rear cover (12) that are fixedly connected by bolts. The first axis (2), the second axis (3), the third axis (4), the fourth axis (5), and the fifth axis (6) are all arranged between the front cover (11) and the rear cover (12), and the two ends of the first axis (2), the second axis (3), the third axis (4), the fourth axis (5), and the fifth axis (6) are respectively rotatably connected to the front cover (11) and the rear cover (12).

9. A full power shift transmission gearbox according to claim 8, characterized in that, The two ends of the first axis (2), the second axis (3), the third axis (4), the fourth axis (5), and the fifth axis (6) are respectively rotatably connected to the front cover (11) and the rear cover (12) through bearings.

10. A tractor, characterized in that, It includes the full-power shift transmission gearbox according to any one of claims 1 to 9.

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