CN120083794A - A transmission mechanism - Google Patents
A transmission mechanism Download PDFInfo
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- CN120083794A CN120083794A CN202411976727.3A CN202411976727A CN120083794A CN 120083794 A CN120083794 A CN 120083794A CN 202411976727 A CN202411976727 A CN 202411976727A CN 120083794 A CN120083794 A CN 120083794A
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- gear
- steering
- reversing
- transmission
- clutch
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16H—GEARING
- F16H3/00—Toothed gearings for conveying rotary motion with variable gear ratio or for reversing rotary motion
- F16H3/02—Toothed gearings for conveying rotary motion with variable gear ratio or for reversing rotary motion without gears having orbital motion
- F16H3/08—Toothed gearings for conveying rotary motion with variable gear ratio or for reversing rotary motion without gears having orbital motion exclusively or essentially with continuously meshing gears, that can be disengaged from their shafts
- F16H3/085—Toothed gearings for conveying rotary motion with variable gear ratio or for reversing rotary motion without gears having orbital motion exclusively or essentially with continuously meshing gears, that can be disengaged from their shafts with more than one output shaft
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Structure Of Transmissions (AREA)
Abstract
本发明公开了第一传动组件、第二传动组件，所述第一传动组件包括第一传动轴，所述第一传动轴上设有第一挡齿轮，所述第一传动轴上且位于第一挡齿轮两侧均设有反转离合套，所述反转离合套外侧设有第一反转部且二者一一对应，所述第一反转部与反转离合套存在连接/断开两种传动状态，且两个第一反转部与其对应的反转离合套传动状态可以相同或不同；与现有技术相比，本发明的有益效果是：即在需要转向时，可通过改变左右两端动力传输路径以使两端传动级数不同，实现左右两端输出轴转动方向相反，进而在将此传动机构应用于履带式旋耕变速箱，可使变速箱达到转弯半径小、操作灵活，驾驶度舒适，并提高车辆的防陷功能，淤泥烂田，通过性强。
The present invention discloses a first transmission component and a second transmission component. The first transmission component comprises a first transmission shaft, a first gear is arranged on the first transmission shaft, a reversing clutch sleeve is arranged on the first transmission shaft and on both sides of the first gear, a first reversing part is arranged on the outer side of the reversing clutch sleeve and the two correspond to each other one by one, the first reversing part and the reversing clutch sleeve have two transmission states of connection/disconnection, and the transmission states of the two first reversing parts and the corresponding reversing clutch sleeves can be the same or different; compared with the prior art, the beneficial effect of the present invention is that when steering is required, the power transmission paths at the left and right ends can be changed to make the transmission levels at the two ends different, so that the output shafts at the left and right ends can rotate in opposite directions, and then the transmission mechanism is applied to the crawler rotary tillage gearbox, so that the gearbox can achieve a small turning radius, flexible operation, comfortable driving, and improve the anti-sinking function of the vehicle, muddy fields, and strong passability.
Description
Technical Field
The invention relates to a transmission mechanism, in particular to a transmission mechanism applied to a gearbox.
Background
The transmission mechanism is applied to a crawler rotary tillage machine and a harvester, namely a gearbox used in the farming industry, when the crawler rotary tillage machine and the harvester need to turn, one end of the transmission gear is driven to move into a brake box through a shifting fork, the transmission gear is braked through a brake block in the brake box, and meanwhile, the other end of the transmission gear rotates normally, so that turning is realized, the one end of the transmission gear brakes, one end of the transmission gear rotates, the turning radius of the reducer is large when turning, and therefore, the transmission mechanism needs to be frequently backed up when turning, so that the operation flexibility is poor.
Disclosure of Invention
The present invention is directed to a transmission mechanism, which solves the above-mentioned problems.
The first transmission assembly comprises a first transmission shaft, a first gear is arranged on the first transmission shaft, reversing clutch sleeves are arranged on the first transmission shaft and positioned on two sides of the first gear, first reversing parts are arranged on the outer sides of the reversing clutch sleeves and correspond to the reversing clutch sleeves one by one, the first reversing parts and the reversing clutch sleeves are in a connection/disconnection state, and the transmission states of the two first reversing parts and the corresponding reversing clutch sleeves can be the same or different;
The second transmission assembly comprises a second transmission shaft, a steering clutch gear is arranged on the second transmission shaft, steering gears are arranged on the second transmission shaft and positioned on two sides of the steering clutch gear in a rotating mode, second reversing parts are arranged on the outer sides of the steering gears and correspond to the steering gears one by one, the steering gears can be in two transmission states through the second reversing parts, the steering gears are respectively connected with the steering clutch gear or the steering gears are connected with the second reversing parts, the transmission states of the two second reversing parts and the corresponding steering gears can be the same or different, and the first gear is meshed and transmitted with the steering clutch gear;
the first reversing gear is meshed with the second reversing gear through the reversing gear to drive.
Preferably, the first reversing part comprises a reversing clutch gear which is rotatably arranged on the first transmission shaft and is positioned at the outer side of the reversing clutch sleeve, a reversing fixed claw is arranged at the outer side of the reversing clutch gear, the reversing clutch gear is provided with a first station and a second station, the reversing clutch gear further comprises a forward and reverse speed shifting fork group, the clamping end of the forward and reverse speed shifting fork group is arranged on the reversing clutch gear to drive the reversing clutch gear to switch between the first station and the second station, the reversing clutch gear can rotate relative to the forward and reverse speed shifting fork group, when the reversing clutch gear is positioned at the first station, the reversing clutch gear is connected with the reversing fixed claw to enable the reversing clutch gear to stop rotating, and when the reversing clutch gear is positioned at the second station, the reversing clutch gear is connected with the reversing clutch sleeve to enable the reversing clutch gear to synchronously rotate with the reversing clutch sleeve.
Preferably, the second reversing part comprises a brake box, the brake box is arranged on the outer side of a steering gear, a gear ring is arranged on the outer side of the brake box, the gear ring is in meshed transmission with the reversing gear, the steering gear is provided with a third station and a fourth station, the second reversing part further comprises a steering shifting fork group (8), the clamping end of the steering shifting fork group (8) is arranged on the steering gear to drive the steering gear to switch between the third station and the fourth station, the steering gear can rotate relative to the steering shifting fork group (8), when the steering gear is located at the third station, the steering gear is connected with a steering clutch gear to enable the steering gear to rotate synchronously with the steering clutch gear, and when the steering gear is located at the fourth station, the steering gear is connected with the brake box to enable the steering gear to rotate synchronously with the brake box.
Preferably, the transmission mechanism further comprises a fourth transmission assembly, the fourth transmission assembly comprises a fourth transmission shaft, a speed change gear set is arranged on the fourth transmission shaft, the speed change gear set can axially move along the fourth transmission shaft but cannot rotate relative to the fourth transmission shaft, the first gear is multiple and corresponds to the speed change gears in the speed change gear set one by one, so that the corresponding first gear and speed change gears are matched to form a group of speed change groups, and when the speed change is needed, the first transmission assembly and the fourth transmission assembly can be meshed and transmitted by changing different speed change groups.
Preferably, the fourth transmission assembly further comprises a shift fork, the set of shift forks being operable to move the position of the shift gears to adjust the engagement of the different sets of shift gears for speed adjustment.
Preferably, the device further comprises a third transmission assembly, wherein the third transmission assembly comprises a third transmission shaft and idler gears, the number of the idler gears is two and is arranged on the third transmission shaft, and the idler gears and the steering gears are meshed for transmission.
Preferably, the reversing clutch gear is connected with the reversing clutch sleeve in a jaw-type manner, the reversing clutch gear is connected with the reversing fixed jaw in a jaw-type manner, and the steering gear is connected with the steering clutch gear through a jaw-type manner.
Preferably, the steering fork group (8) is two groups, the steering fork group (8) comprises a steering fork body and a steering arm, one end of the steering fork body is clamped on a steering gear, the other end of the steering fork body is connected with the steering arm, the steering fork further comprises a steering oil cylinder, and the steering oil cylinder drives the steering gear to axially move by extruding the steering arm through the steering fork body.
Preferably, the steering shifting fork body comprises a U-shaped fork head and a rod body, the opening of the rod body faces the steering gear and is positioned in a groove recessed in the axial direction of the steering gear, one end of the U-shaped fork head extending into the groove is in clearance with the inner wall of the groove of the steering gear, one end of the rod body away from the U-shaped fork head is connected with a steering arm, and the telescopic end of the axial oil cylinder pushes the steering arm to rotate around the rod body, so that the U-shaped fork head is positioned on the upper half part of the rod body and the U-shaped fork head is positioned on the lower half part of the rod body to reversely move.
Preferably, when the vehicle is walking normally, the two first reversing parts are disconnected with the reversing clutch sleeves corresponding to the first reversing parts, the first gear drives the steering clutch gear to be meshed and driven, and the two steering gears and the steering clutch gear are synchronously driven;
When turning is needed, the first reversing part at one end is connected with the reversing clutch sleeve at the same side, and the steering gear at the same end is connected with the second reversing part corresponding to the steering gear;
The first reversing part at the other end is connected with the reversing clutch sleeve corresponding to the first reversing part, the steering gear at the same end is connected with the steering clutch gear corresponding to the reversing clutch sleeve, the second reversing part at the same end idles, or the first reversing part at the other end is disconnected with the reversing clutch sleeve corresponding to the reversing clutch sleeve, and the steering gear at the same end is connected with the steering clutch gear.
Preferably, the fourth transmission shaft is a spline shaft, and a key slot matched with the spline shaft is formed in the speed change gear set.
The gearbox also comprises a left output shaft assembly and a right output shaft assembly which are meshed with the third transmission assembly for transmission.
Compared with the prior art, the invention has the beneficial effects that when the steering is needed, the rotation directions of the output shafts at the left end and the right end are opposite by changing the power transmission paths at the left end and the right end to make the transmission stages at the two ends different, and further, when the transmission mechanism is applied to the crawler-type rotary tillage gearbox, the gearbox can achieve the advantages of small turning radius, flexible operation, comfortable driving degree, improvement of the anti-sinking function of a vehicle, rotten sludge field and strong trafficability.
Drawings
FIG. 1 is a schematic view of a part of the structure of the present invention;
FIG. 2 is a schematic view of a portion of the structure of the present invention;
FIG. 3 is a schematic diagram of the structure of the present invention;
FIG. 4 is a schematic view of a portion of the structure of a transmission according to the present invention;
In the figure, 1, a first transmission assembly, 11, a reverse clutch gear, 12, a forward and reverse speed shifting fork group, 13, a reverse clutch sleeve, 14, a spacer, 15, a first gear, 16, a first transmission shaft, 17, a reverse fixed claw, 2, a reverse gear, 3, a second transmission assembly, 31, a steering clutch gear, 32, a steering gear, 8, a steering shifting fork group, 81, a steering shifting fork body, 82, a steering arm, 83, a steering oil cylinder, 6, a left output shaft assembly, 7, a right output shaft assembly, 4, a fourth transmission assembly, 41, a fourth gear transmission gear, 42, a fourth transmission shaft, 43, a speed change gear set, 5, a third transmission assembly, 51, an idler gear, 9 and a brake box.
Detailed Description
The following description of the embodiments of the present invention will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present invention, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
Referring to fig. 1-4, the present invention provides a technical solution, including a first transmission assembly 1 and a second transmission assembly 3, where the first transmission assembly 1 includes a first transmission shaft 16, a first gear 15 is disposed on the first transmission shaft 16, the first gear can move axially relative to the first transmission shaft 16 but cannot rotate relatively, reversing clutch sleeves 13 are disposed on the first transmission shaft 16 and located on two sides of the first gear 15, first reversing portions are disposed on the outer side of the reversing clutch sleeve 13 and are disposed in one-to-one correspondence with the first reversing portions, and two transmission states of connection/disconnection exist between the first reversing portions and the reversing clutch sleeve 13, and the transmission states of the two first reversing portions and the corresponding reversing clutch sleeve 13 can be the same or different;
The second transmission assembly 3 comprises a second transmission shaft, a steering clutch gear 31 is arranged on the second transmission shaft, steering gears 32 are rotatably arranged on the second transmission shaft and positioned on two sides of the steering clutch gear 31, second reversing parts are arranged on the outer sides of the steering gears 32 and correspond to the steering gears 32 one by one, the steering gears 32 can have two transmission states through the second reversing parts, the steering gears 32 are respectively connected with the steering clutch gear 31 or the steering gears 32 are respectively connected with the second reversing parts, the transmission states of the two second reversing parts and the corresponding steering gears 32 can be the same or different, and the first blocking gear 15 and the steering clutch gear 31 are in meshed transmission;
The device also comprises a reversing gear 2, wherein the first reversing part is meshed with the second reversing part through the reversing gear 2 for transmission;
Namely, when the vehicle is walking normally, the first reversing parts at the two ends are disconnected with the reversing clutch sleeves 13 corresponding to the first reversing parts, the steering clutch gears 31 at the two ends are driven to be meshed and driven by the first gear 15, and the two steering gears 32 at the two ends are synchronously driven with the steering clutch gears 31;
The power transmission is that the first gear 15 is transmitted to the left reverse clutch sleeve 13, the left reverse clutch sleeve 13 is transmitted to the left second reverse part through the left reverse gear 2, and the left second reverse part drives the left steering gear 32 to transmit;
The first reversing part at the right end is disconnected with the reversing clutch sleeve 13 at the same side, and the steering gear 32 at the right end is connected with the steering clutch gear 31, or the first reversing part at the right end is connected with the reversing clutch sleeve 13 at the same side, and the steering gear 32 at the right end is connected with the steering clutch gear 31, and the second reversing part at the right end idles at the moment, namely, the power transmission is still transmitted from the first gear 15 at the right end to the steering clutch gear 31 at the right end, and the steering clutch gear 31 at the right end to the steering gear 32;
The steering gears at the left end and the right end of the steering gear are driven by power transmission paths with different transmission levels, so that the steering gears at the left end and the right end rotate in opposite directions.
In a further embodiment, the first reversing portion includes a reversing clutch gear 11 rotatably disposed on the first transmission shaft 16 and located outside the reversing clutch sleeve 13, a reversing fixing claw 17 is disposed outside the reversing clutch gear 11, the reversing fixing claw 17 is fixedly disposed on the outer housing and rotationally connected with the first transmission shaft 16, and the first reversing portion further includes a forward reversing shift fork group 12, a clamping end of the forward reversing shift fork group 12 is disposed on the reversing clutch gear 11 to drive the reversing clutch gear 11 to switch between a first station and a second station, and the reversing clutch gear 11 can rotate relative to the forward reversing shift fork group 12, when the reversing clutch gear 11 is in the first station, the reversing clutch gear 11 is connected with the reversing fixing claw 17 to stop rotation of the reversing clutch gear 11, and when the reversing clutch gear 11 is in the second station, the reversing clutch gear 11 is connected with the reversing clutch sleeve 13 to enable the reversing clutch gear 11 to synchronously rotate with the reversing clutch sleeve 13.
During normal transmission, the reverse clutch gear 11 can be driven to move to the first station by the forward and reverse speed shifting fork group 12, so that the reverse clutch gear 11 stops rotating, and the power on the left side and the right side is ensured to be transmitted from the middle first gear 15 to the steering clutch gear 31.
In a further embodiment, the reverse clutch gear 11 is in jaw connection with the reverse clutch sleeve 13, and the reverse clutch gear 11 is in jaw connection with the reverse fixed jaw 17;
The reverse clutch gear 11 and the reverse clutch sleeve 13 are stably connected to ensure synchronous rotation stability during normal walking, and meanwhile, the reverse clutch gear 11 and the reverse clutch sleeve 13 can be driven to be separated by the forward and reverse speed shifting fork group 12 when steering is needed, so that different station switching is convenient to realize.
In a further embodiment, the reverse clutch gear 11 is provided with a groove recessed toward the axial direction, and the forward and reverse speed shifting fork group 12 is clamped in the groove and has a gap with the reverse clutch gear 11;
the forward and reverse speed shifting fork group 12 is ensured to drive the reverse clutch gear 11 to axially move to realize the switching of different stations, and meanwhile, the forward and reverse speed shifting fork group 12 is prevented from being driven to synchronously rotate when the reverse clutch gear 11 rotates.
In a further embodiment, the second reversing part comprises a brake box 9 fixedly arranged on the outer shell, the brake box 9 is positioned at the outer side of the steering gear 32 and is rotationally connected with the second transmission shaft, a gear ring is arranged at the outer side of the brake box 9 and is in meshed transmission with the reversing gear 2, the steering gear 32 is provided with a third station and a fourth station, and the second reversing part further comprises a steering shifting fork group 8, a clamping end of the steering shifting fork group 8 is arranged on the steering gear 32 to drive the steering gear 32 to switch between the third station and the fourth station, the steering gear 32 can rotate relative to the steering shifting fork group 8, when the steering gear 32 is positioned at the third station, the steering gear 32 is connected with the steering clutch gear 31 to enable the steering gear 32 to synchronously rotate with the steering clutch gear 31, and when the steering gear 32 is positioned at the fourth station, the steering gear 32 is connected with the brake box 9 to enable the steering gear 32 to synchronously rotate with the brake box 9, namely when steering is needed, the steering shifting fork group 8 can drive the steering gear 32 to move to the fourth station to enable the steering gear 32 to be connected with the brake box 9 to synchronously rotate with the brake box 9, and the steering clutch gear 32 can synchronously drive the steering gear to achieve the transmission path;
The power transmission path is that the reversing clutch gear 11 drives the reversing gear 2 to rotate, and the reversing gear 2 drives the gear ring to rotate so as to drive the brake box 9 to rotate, and further drives the steering gear 32 to rotate.
In a further embodiment, the steering gear 32 is connected with the steering clutch gear 31 through a jaw, so that not only is the transmission stability ensured when the steering gear 32 is connected with the steering clutch gear 31, but also the steering gear 32 and the steering clutch gear 31 are conveniently separated when steering is required, and the switching efficiency is improved.
In a further embodiment, a brake pad is disposed in the brake box 9 to brake the steering gear 32 so that the steering gear 32 is relatively stationary, and the gear ring is disposed outside the brake box to drive the brake box 9 to rotate, so as to further drive the steering gear 32 to synchronously rotate.
In a further embodiment, the transmission device further comprises a fourth transmission assembly 4, the fourth transmission assembly 4 comprises a fourth transmission shaft 42, a speed change gear set 43 is arranged on the fourth transmission shaft 42, the speed change gear set 43 can axially move along the fourth transmission shaft 42 but cannot relatively rotate with the fourth transmission shaft, the first gear 15 is a plurality of and corresponds to the plurality of speed change gears in the speed change gear set 43 one by one, so that a group of speed change groups are formed by matching the corresponding first gear 15 and the speed change gears, and when the speed change is required, the meshing transmission of the first transmission assembly 1 and the fourth transmission assembly 4 can be realized by changing different speed change group meshing;
That is, during normal power transmission, only the speed change gear is driven to move on the fourth transmission shaft 42 or the first gear 15 is driven to move on the first transmission shaft 16, so that the corresponding gear sets are engaged for transmission, that is, different gear sets are engaged for transmission by adjusting the position of the speed change gear or the first gear 15, so as to achieve the speed change requirement.
In a further embodiment, the fourth transmission assembly 4 further comprises a fourth-gear transmission gear 41, and the fourth-gear transmission gear 41 is arranged on a fourth transmission shaft 42 and meshed with the input motor for transmission;
Namely, the input motor drives the fourth-gear transmission gear 41 to rotate, further drives the fourth transmission shaft 42 to rotate, and further drives the speed change gear to rotate so as to drive the first-gear 15 to rotate.
In a further embodiment, not shown in the figures, the shift fork sets may be used to shift the position of the gear to adjust the engagement of the different sets for speed regulation.
In a further embodiment, the middle part of the first transmission shaft 16 is a spline shaft, two ends of the first transmission shaft are circular shafts, and the first gear 15 and the reversing clutch sleeve 13 are provided with keyways matched with the spline shaft;
The first gear 15 can move in the axial direction of the transmission shaft through the spline shaft in the middle of the first transmission shaft, so that speed change adjustment is facilitated, synchronous rotation of the first transmission shaft and the first gear 15 can be guaranteed, power transmission stability is guaranteed, meanwhile, the reversing clutch gear 11 can rotate relative to the first transmission shaft through the circular shafts at the two ends, whether the reversing clutch gear 11 and the reversing clutch sleeve 13 synchronously rotate or not can be adjusted, and secondly, the fourth transmission shaft can also move in the axial direction of the speed change gear set 43 for adjusting meshing of different speed change groups through the spline shaft, and synchronous rotation stability is guaranteed.
In a further embodiment, a spacer bush 14 is arranged between the plurality of first gear wheels 15, and the spacer bush 14 is sleeved on the first transmission shaft 16 to prevent the first gear wheels 15 from moving axially during transmission;
Further, the device further comprises a third transmission assembly 5, wherein the third transmission assembly 5 comprises a third transmission shaft and idler gears 51, the number of the idler gears 51 is two and the idler gears 51 are arranged on the third transmission shaft, and the idler gears 51 are meshed with the steering gear 32 for transmission;
That is, during power transmission, power is transmitted to the idler gear via the steering gear to further the external output shaft.
In a further embodiment, the steering fork group 8 is two groups, the steering fork group 8 comprises a steering fork body 81, the steering fork body 81 is composed of a U-shaped fork head and a rod body, the opening of the rod body faces the steering gear 32 and is positioned in a groove recessed in the axial direction of the steering gear 32, one end of the U-shaped fork head extending into the groove is in clearance with the inner wall of the groove of the steering gear 32, one end of the rod body, far away from the U-shaped fork head, is connected with a steering arm 82, the steering fork comprises a steering cylinder 83, the axial cylinder 83 is fixedly arranged on an outer shell, and the telescopic end pushes the steering arm 82 to rotate around the rod body, so that the U-shaped fork head is positioned on the upper half of the rod body and the U-shaped fork head is positioned on the lower half of the rod body to reversely move.
The steering oil cylinder drives the steering arm 82 to rotate around the rod body, and further drives the U-shaped fork head to reversely move at the upper half part of the rod body and the U-shaped fork head to reversely move at the lower half part of the rod body, so that the steering gear 32 is driven to axially move through the U-shaped fork head, and meanwhile, the groove of the steering gear 32 is not in direct contact with the U-shaped fork head, namely interference with the U-shaped fork head during axial rotation of the steering gear 32 is avoided, and further power transmission is influenced.
In a further embodiment, an input motor is also included, which is in meshed transmission with the third transmission assembly 5.
The gearbox comprises the transmission assembly, a left output shaft assembly 6 and a right output shaft assembly 7, and the two idler gears 51 are meshed with the left output shaft assembly 6 and the right output shaft assembly 7 respectively for transmission;
the invention has the working principle and the use flow that when the walking is required to be performed normally, the power transmission paths at the two ends are the same, and the power transmission paths are all input motor-fourth transmission assembly 4-first gear 15-steering clutch gear 31-steering gear 32-idler gear 51-left/right output shaft assembly;
When the steering is needed, the left end comprises a forward and reverse speed shifting fork group 12, a steering shifting fork group 8, a first gear 15, a reverse clutch sleeve 13, a reverse clutch gear 11, a reversing gear 2, a brake box 9, a steering gear 32, an idler gear 51 and a left output shaft assembly, wherein the forward and reverse speed shifting fork group 12 drives the reverse clutch gear 11 to be connected with the reverse clutch sleeve 13, and the steering shifting fork group 8 drives the same-side steering gear 32 to be connected with the reduction box 9;
The right end is connected with the reversing clutch gear 11 and the reversing clutch sleeve 13 through the forward and reverse speed shifting fork group 12, the steering shifting fork group 8 at the right end drives the same-side steering gear 32 to be connected with the steering clutch gear 31, the reduction gearbox 9 at the right end is in an idling state, or the forward and reverse speed shifting fork group 12 drives the reversing clutch gear 11 to be connected with the reversing fixed claw 17, and the steering shifting fork group 8 drives the same-side steering gear 32 to be connected with the steering clutch gear 31.
A right-end power transmission path, namely an input motor, a fourth transmission assembly 4, a first gear 15, a steering clutch gear 31, a steering gear 32, an idler gear 51 and a right output shaft assembly;
The transmission paths and the transmission stages of the left and right output shaft assemblies are different, so that the left and right output shaft assemblies can reversely rotate during turning, the turning radius is further reduced, namely, the efficiency is improved during busy farming, and frequent reversing is not needed.
Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made therein without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (10)
1. The transmission mechanism is characterized by comprising a first transmission assembly (1) and a second transmission assembly (3), wherein the first transmission assembly (1) comprises a first transmission shaft (16), a first gear (15) is arranged on the first transmission shaft (16), reversing clutch sleeves (13) are arranged on the first transmission shaft (16) and positioned on two sides of the first gear (15), first reversing parts are arranged on the outer sides of the reversing clutch sleeves (13) and correspond to the reversing clutch sleeves one by one, the first reversing parts and the reversing clutch sleeves (13) are in connection/disconnection two transmission states, and the transmission states of the two first reversing parts and the corresponding reversing clutch sleeves (13) can be the same or different;
The second transmission assembly (3) comprises a second transmission shaft, a steering clutch gear (31) is arranged on the second transmission shaft, steering gears (32) are arranged on the second transmission shaft in a rotating mode and positioned on two sides of the steering clutch gear (31), second reversing parts are arranged on the outer sides of the steering gears (32) and correspond to the steering gears one by one, the steering gears (32) can be in two transmission states, the steering gears (32) are connected with the steering clutch gear (31) or the steering gears (32) are connected with the second reversing parts, the transmission states of the two second reversing parts and the corresponding steering gears (32) can be the same or different, and the first gear (15) and the steering clutch gear (31) are in meshed transmission;
The device also comprises a reversing gear (2), and the first reversing part is meshed with the second reversing part through the reversing gear (2) for transmission.
2. A transmission mechanism according to claim 1, wherein the first reversing portion comprises a reversing clutch gear (11), the reversing clutch gear (11) is rotatably arranged on the first transmission shaft (16) and is located on the outer side of a reversing clutch sleeve (13), a reversing fixed claw (17) is arranged on the outer side of the reversing clutch gear (11), the reversing clutch gear (11) is provided with a first station and a second station, the transmission mechanism further comprises a forward reversing shift fork group (12), the clamping end of the forward reversing shift fork group (12) is arranged on the reversing clutch gear (11) to drive the reversing clutch gear (11) to switch between the first station and the second station, the reversing clutch gear (11) can rotate relative to the forward reversing shift fork group (12), when the reversing clutch gear (11) is in the first station, the reversing clutch gear (11) is connected with the reversing fixed claw (17) to stop rotating the reversing clutch gear (11), and when the reversing clutch gear (11) is in the second station, the reversing clutch gear (11) is connected with the reversing clutch sleeve (13) to enable the reversing clutch gear (11) to rotate synchronously with the reversing clutch sleeve (13).
3. A transmission mechanism according to claim 1, wherein the second reversing portion comprises a brake box (9), the brake box (9) is arranged on the outer side of a steering gear (32), a gear ring is arranged on the outer side of the brake box (9), the gear ring is meshed with the reversing gear (2) for transmission, the steering gear (32) is provided with a third station and a fourth station, the transmission mechanism further comprises a steering shifting fork group (8), the clamping end of the steering shifting fork group (8) is arranged on the steering gear (32) to drive the steering gear (32) to switch between the third station and the fourth station, the steering gear (32) can rotate relative to the steering shifting fork group (8), when the steering gear (32) is located at the third station, the steering gear (32) is connected with a steering clutch gear (31) to enable the steering gear (32) to rotate synchronously with the steering clutch gear (31), and when the steering gear (32) is located at the fourth station, the steering gear (32) is connected with the brake box (9) to enable the steering gear (32) to rotate synchronously with the steering gear (9).
4. A transmission mechanism according to claim 1, further comprising a fourth transmission assembly (4), wherein the fourth transmission assembly (4) comprises a fourth transmission shaft (42), a speed change gear set (43) is arranged on the fourth transmission shaft (42), the speed change gear set (43) can move axially along the fourth transmission shaft (42) but cannot rotate relatively with the fourth transmission shaft, the first gear (15) is a plurality of speed change gears in the speed change gear set (43) in a one-to-one correspondence mode, so that the corresponding first gear (15) and speed change gears form a set of speed change groups, when a speed change is required, the first transmission assembly (1) and the fourth transmission assembly (4) can be in meshed transmission through changing different speed change groups, preferably, the fourth transmission assembly (4) further comprises a speed change fork, the speed change fork set can be used for moving the speed change gear position to adjust the meshing of different speed change groups, preferably, the fourth transmission shaft (42) is a spline shaft, and the speed change gear set (43) is provided with a spline shaft.
5. A transmission mechanism according to claim 1, further comprising a third transmission assembly (5), wherein the third transmission assembly (5) comprises a third transmission shaft and idler gears (51), the idler gears (51) are two and are arranged on the third transmission shaft, and the idler gears (51) are meshed with the steering gears (32) for transmission.
6. A transmission mechanism according to claim 2, wherein the reverse clutch gear (11) is in jaw connection with the reverse clutch sleeve (13), the reverse clutch gear (11) is in jaw connection with the reverse fixed jaw (17), and the steering gear (32) is in jaw connection with the steering clutch gear (31).
7. The transmission mechanism according to claim 1, wherein the steering fork group (8) is divided into two groups, the steering fork group (8) comprises a steering fork body (81) and a steering arm (82), one end of the steering fork body (81) is clamped on the steering gear (32), the other end of the steering fork body (81) is connected with the steering arm (82), the transmission mechanism further comprises the steering oil cylinder (83), and the steering oil cylinder (83) drives the steering gear (32) to axially move by extruding the steering arm (82) through the steering fork body (81).
8. A transmission mechanism according to claim 7, wherein the steering fork body (81) is composed of a U-shaped fork head and a rod body, the opening of the rod body faces the steering gear (32) and is positioned in a groove recessed in the axial direction of the steering gear (32), one end of the U-shaped fork head extending into the groove is in clearance with the inner wall of the groove of the steering gear (32), one end of the rod body far away from the U-shaped fork head is connected with a steering arm (82), and the telescopic end of the axial oil cylinder (83) pushes the steering arm (82) to rotate around the rod body, so that the U-shaped fork head is positioned on the upper half part of the rod body and the U-shaped fork head is positioned on the lower half part of the rod body to reversely move.
9. The transmission mechanism according to claim 1, wherein when the vehicle is walking normally, the two first reversing parts are disconnected from the corresponding reversing clutch sleeves (13), the steering clutch gear (31) is driven to be meshed for transmission through the first gear (15), and the two steering gears (32) and the steering clutch gear (31) are synchronously driven;
namely, when turning is needed, a first reversing part at one end is connected with a reversing clutch sleeve (13) at the same side, and a steering gear (32) at the same end is connected with a second reversing part corresponding to the first reversing part;
the first reversing part at the other end is connected with the reversing clutch sleeve (13) corresponding to the first reversing part, the steering gear (32) at the same end is connected with the steering clutch gear (31) corresponding to the first reversing part, the second reversing part at the other end idles, or the first reversing part at the other end is disconnected with the reversing clutch sleeve (13) corresponding to the second reversing part, and the steering gear (32) at the same end is connected with the steering clutch gear (31).
10. A gearbox, characterized in that it comprises a transmission mechanism according to claims 1-9, and further comprises a left output shaft assembly (6) and a right output shaft assembly (7) which are meshed with the third transmission assembly (5).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202411976727.3A CN120083794A (en) | 2024-12-31 | 2024-12-31 | A transmission mechanism |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202411976727.3A CN120083794A (en) | 2024-12-31 | 2024-12-31 | A transmission mechanism |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN120083794A true CN120083794A (en) | 2025-06-03 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202411976727.3A Pending CN120083794A (en) | 2024-12-31 | 2024-12-31 | A transmission mechanism |
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| Country | Link |
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| CN (1) | CN120083794A (en) |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0455474U (en) * | 1990-09-19 | 1992-05-12 | ||
| CN110686060A (en) * | 2019-08-26 | 2020-01-14 | 重庆宏美科技有限公司 | Steering gearbox and agricultural machine with same |
| CN210318377U (en) * | 2019-08-09 | 2020-04-14 | 滁州悦达实业有限公司 | A two-speed transmission |
| CN211715686U (en) * | 2020-01-15 | 2020-10-20 | 潍坊鲁源机械有限公司 | Gear box |
| CN218543070U (en) * | 2022-12-05 | 2023-02-28 | 浙江小精农机制造有限公司 | Carrier gearbox with hydrostatic continuously variable transmission |
| CN118815880A (en) * | 2024-08-19 | 2024-10-22 | 滁州悦达实业有限公司 | A mechanical in-situ steering gearbox |
| CN119022045A (en) * | 2024-08-19 | 2024-11-26 | 滁州悦达实业有限公司 | Steering system and agricultural gearbox |
-
2024
- 2024-12-31 CN CN202411976727.3A patent/CN120083794A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0455474U (en) * | 1990-09-19 | 1992-05-12 | ||
| CN210318377U (en) * | 2019-08-09 | 2020-04-14 | 滁州悦达实业有限公司 | A two-speed transmission |
| CN110686060A (en) * | 2019-08-26 | 2020-01-14 | 重庆宏美科技有限公司 | Steering gearbox and agricultural machine with same |
| CN211715686U (en) * | 2020-01-15 | 2020-10-20 | 潍坊鲁源机械有限公司 | Gear box |
| CN218543070U (en) * | 2022-12-05 | 2023-02-28 | 浙江小精农机制造有限公司 | Carrier gearbox with hydrostatic continuously variable transmission |
| CN118815880A (en) * | 2024-08-19 | 2024-10-22 | 滁州悦达实业有限公司 | A mechanical in-situ steering gearbox |
| CN119022045A (en) * | 2024-08-19 | 2024-11-26 | 滁州悦达实业有限公司 | Steering system and agricultural gearbox |
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