CN215861568U - Novel automatic gear shifting speed change assembly - Google Patents
Novel automatic gear shifting speed change assembly Download PDFInfo
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- CN215861568U CN215861568U CN202121649786.1U CN202121649786U CN215861568U CN 215861568 U CN215861568 U CN 215861568U CN 202121649786 U CN202121649786 U CN 202121649786U CN 215861568 U CN215861568 U CN 215861568U
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Abstract
The utility model provides a novel automatic gear shifting and speed changing assembly which comprises a power input shaft, a walking shaft for providing power for vehicle walking, a power transmission assembly between the power input shaft and the walking shaft, wherein the transmission assembly comprises a power transmission shaft rotating synchronously with the power input shaft, and a gear continuously meshed with the walking shaft and a gear shifting driving gear for controlling power output of the gear are arranged on the power transmission shaft. The problem that tractor full power shifted has been solved to this technique assembly, can also match the high horsepower engine simultaneously, has filled the market blank of domestic incapability production high horsepower tractor, and the power of this technique shifts the speed change assembly and still has to shift smoothly, do not have and pause and frustrate and feel, shifts the whole electrically controlled technique that adopts for operate simpler, can realize intelligent operation, unmanned driving.
Description
Technical Field
The utility model relates to the technical field of mechanical transmission, in particular to a gearbox, and particularly relates to a novel automatic gear shifting and speed changing assembly.
Background
At present, the technical bottlenecks of the gearboxes of domestic tractors mainly focus on two points, one point is that a high-horsepower gearbox does not exist, and the other point is that an automatic gear shifting technology does not exist.
Through market research, the horsepower section of the domestic tractor is mainly concentrated below 220 horsepower, not because of insufficient power of an engine, but mainly because a gearbox matched with a high-horsepower engine is not arranged, and a plurality of tractor factories adopting the automatic gear shifting technology are also designed and researched, but are concentrated on a small horsepower section, so that the horsepower above 300 horsepower basically does not exist.
According to market research and analysis, except for a plurality of automatic-gear gearbox type tractors abroad, the so-called automatic-gear or power-shifting gearbox on the domestic market is actually automatic reversing and is not actually automatic shifting.
The conventional power gear shifting gearbox is strong in gear shifting pause and pause feeling, the gearbox leaks oil after long-term use, the service lives of the gearbox and an engine are shortened, power gear shifting is different from stepless speed change, how to realize gear shifting without stopping is an obvious mark of full-power gear shifting, and in this respect, the traditional tractor gearbox technology in China is difficult to realize.
Disclosure of Invention
The technical problem to be solved by the utility model is to provide a novel automatic gear shifting and speed changing assembly aiming at the defects in the prior art, the technical assembly solves the problem of full-power gear shifting of a vehicle, and can be matched with a high-horsepower engine, the market blank of a domestic incapability of producing a high-horsepower tractor is filled up, the power gear shifting and speed changing assembly of the technology also has smooth gear shifting and no pause feeling, the engine and a gearbox are protected, the oil leakage phenomenon of the engine and the gearbox is solved, the manual or electric control technology can be adopted in the whole gear shifting process, the electric control technology enables the operation to be simpler, and intelligent operation and unmanned driving can be realized.
The technical scheme includes that the novel automatic gear shifting and speed changing assembly comprises a power input shaft, a walking shaft for providing power for vehicle walking, a transmission assembly between the power input shaft and the walking shaft, wherein the transmission assembly comprises a power transmission shaft for realizing synchronous or clearance transmission with the power input shaft, a gear arranged on the power transmission shaft through a bearing, a gear shifting driving gear arranged on the power transmission shaft through a marking shaft, and a forward walking gear rotating synchronously with the walking shaft, the gear is continuously meshed with the forward walking gear, and the gear shifting driving gear can realize meshing and separation with the gear by axial movement.
Preferably, the number of the power transmission shafts is not less than two, and the same-gear gears on the power transmission shafts can provide power for the walking shafts independently or simultaneously.
Preferably, the gear shifting driving gear and the gear shifting gears are matched and transmitted through side surfaces.
Preferably, the gear gears comprise a plurality of gears, the shift driving gear comprises a plurality of gears, and the shift driving gear rotates synchronously with the power input shaft.
Preferably, the number of the power input shafts is not less than two, the power input shaft is provided with a driving gear for driving the power transmission shaft to rotate, and the power input shaft can continuously or/and alternately provide power for the power transmission shaft.
Preferably, the two power input shafts are respectively an inner shaft and an outer shaft, the inner shaft is sleeved on the outer shaft, and the driving gears are an inner shaft driving gear and an outer shaft driving gear which are respectively arranged at the tail end of the inner shaft and the tail end of the outer shaft.
Preferably, the power transmission shaft is provided with a transmission gear matched with the driving gear, namely a first transmission gear and a second transmission gear, and the transmission gear and the power transmission shaft rotate synchronously.
Preferably, the gear transmission mechanism further comprises a low-gear transmission shaft, one of the gear gears is arranged on the low-gear transmission shaft and rotates synchronously with the low-gear transmission shaft, and a low-gear steering gear is arranged on the low-gear transmission shaft.
Preferably, the walking shafts are designed into two sections of structures and are respectively a first walking shaft and a second walking shaft, and a high-low gear sliding sleeve for controlling the first walking shaft and the second walking shaft to be separated and combined is arranged between the first walking shaft and the second walking shaft.
Preferably, a reverse gear is further arranged on the low-gear transmission shaft and is matched with a reverse gear traveling gear on the second traveling shaft through an intermediate gear.
The beneficial effects of the technical scheme are as follows: the problem that tractor full power shifted has been solved to this technique assembly, can also match the high horsepower engine simultaneously, has filled the market blank of domestic incapability production high horsepower tractor, and the power of this technique shifts the speed change assembly and still has to shift smoothly, do not have and pause and frustrate and feel, shifts the whole electrically controlled technique that adopts for operate simpler, can realize intelligent operation, unmanned driving.
Drawings
Fig. 1 is a structural schematic diagram (one) of the novel automatic gear shifting speed changing assembly.
Fig. 2 is a structural schematic diagram (two) of the novel automatic gear shifting speed changing assembly.
Fig. 3 is a schematic structural diagram of the novel automatic gear shifting assembly (with the high-low gear sliding sleeve and one of the moving sleeve parts removed).
Fig. 4 is a schematic view of the structure of the gear drive gear of fig. 1.
Detailed Description
For convenience of explanation, the novel automatic gear shifting assembly of the present invention will be described in detail with reference to the accompanying drawings.
As shown in fig. 1 to 4, a novel automatic gear shifting and speed changing assembly comprises a power input shaft, a walking shaft for providing power for vehicle walking, a transmission assembly between the power input shaft and the walking shaft, wherein the transmission assembly comprises a power transmission shaft for realizing synchronous or clearance transmission with the power input shaft, a gear arranged on the power transmission shaft through a bearing, a gear shifting driving gear arranged on the power transmission shaft through a marking shaft, and a forward walking gear rotating synchronously with the walking shaft, the gear is continuously engaged with the forward walking gear, and the gear shifting driving gear can realize engagement and disengagement with the gear by axial movement; the number of the power transmission shafts is not less than two, and gears with the same gear on the power transmission shafts can provide power for the walking shafts independently or simultaneously; the common high-horsepower tractor uses a double-power transmission shaft to act simultaneously, and the gear shifting driving gear and the gear are matched and transmitted through the side surface; the gear gears comprise a plurality of gears, the gear shifting driving gears comprise a plurality of gears, and the gear shifting driving gears and the power input shaft synchronously rotate; the power transmission device comprises at least two power input shafts, wherein the power input shafts are provided with driving gears for driving the power transmission shafts to rotate, and the power input shafts can continuously or/and alternately provide power for the power transmission shafts; the two power input shafts are respectively an inner shaft 1.2 and an outer shaft 1.1, the inner shaft 1.2 is sleeved on the outer shaft 1.1, and the driving gears are an inner shaft driving gear 2.2 and an outer shaft driving gear 2.1 which are respectively arranged at the tail end of the inner shaft and the tail end of the outer shaft; the power transmission shaft is provided with transmission gears matched with the driving gear, namely a first transmission gear 3.1 and a second transmission gear 3.2, and the transmission gears and the power transmission shaft synchronously rotate; the transmission device further comprises a low-gear transmission shaft 14, one of the gear gears is arranged on the low-gear transmission shaft 14 and rotates synchronously with the low-gear transmission shaft 14, and a low-gear direction changing gear 15 is arranged on the low-gear transmission shaft 14; the walking shafts are designed into two sections of structures and respectively comprise a first walking shaft 5.1 and a second walking shaft 5.2, and a high-low gear sliding sleeve 13 for controlling the first walking shaft and the second walking shaft to be separated and combined is arranged between the first walking shaft 5.1 and the second walking shaft 5.2; a reverse gear 1 is further arranged on the low-gear transmission shaft 14, and the reverse gear 16 is matched with a reverse gear traveling gear 18 on the second traveling shaft 5.2 through an intermediate gear 17.
The working principle is as follows: the engine power has connect the power input shaft of gearbox behind the clutch, and the power input shaft includes two, is interior axle 1.2 and outer axle 1.1 respectively, interior axle 1.2 suit is in outer axle 1.1, interior axle 1.2 end is equipped with interior shaft drive gear 2.2, outer axle 1.1 end is equipped with outer axle drive gear 2.1.
Two sets of reverse-fit speed change systems are arranged in the gearbox, each reverse-fit speed change system comprises a power transmission shaft which is respectively a first power transmission shaft 3.1 and a second power transmission shaft 3.2, the first power transmission shaft 3.1 and the second power transmission shaft 3.2 are arranged in parallel, a first power transmission gear 4.1 meshed with an outer shaft driving gear 2.1 is connected to the first power transmission shaft 3.1, a second power transmission gear 4.2 meshed with an inner shaft driving gear 2.2 is connected to the second power transmission shaft 3.2, and the first power transmission gear 4.1 and the second power transmission gear 4.2 respectively drive the first power transmission shaft 3.1 and the second power transmission shaft 3.2 to rotate.
The first power transmission shaft 3.1 and the second power transmission shaft 3.2 are identical in structure.
The power transmission shaft is connected with a gear through a bearing, the power transmission shaft is connected with a gear shifting driving gear through a scribing tooth, the power transmission shaft is a scribing shaft, and the scribing shaft is sleeved with the gear shifting driving gear capable of axially moving along the power transmission shaft under the action of external force.
The gear type bicycle is characterized by further comprising a traveling shaft, wherein a forward gear is connected to the traveling shaft and is continuously meshed with the gear.
In order to increase the high and low gears, the travelling shaft comprises two sections, namely a first travelling shaft 5.1 and a second travelling shaft 5.2.
Taking a four-gear transmission case as an example, the four-gear transmission case comprises a first-gear 6.1, a second-gear 6.2, a third-gear 6.3 and a fourth-gear 6.4, and a first-gear forward gear 7.1, a second-gear forward gear 7.2, a third-gear forward gear 7.3 and a fourth-gear forward gear 7.4 which are continuously meshed with the first-gear forward gear, the second-gear forward gear, the third-gear forward gear and the fourth-gear forward gear.
First power transmission shaft 3.1 and second power transmission shaft 3.2 all connect one through the bearing and keep off gear 6.1, keep off gear 6.2 and third gear 6.3, all be equipped with two gear drive gears on first power transmission shaft 3.1 and the second power transmission shaft 3.2, first gear drive gear 8.1 and second gear drive gear 8.2 respectively shift, first gear drive gear 8.1 is located between one keeps off gear 6.1 and two keep off gear 6.2, and second drive gear is located between third gear 6.3 and fourth gear 6.4.
The engine transmits power to the power input shaft through the clutch, the inner shaft 1.2 and the outer shaft 1.1 of the power input shaft are respectively controlled by two clutches, the first clutch controls the outer shaft 1.1, the second clutch controls the inner shaft 1.2, the clutches are electrically controlled clutches, after the vehicle starts the engine, the clutch is in a normally closed state (combination state), the inner shaft 1.2 and the outer shaft 1.1 rotate simultaneously, the inner shaft 1.2 and the outer shaft 1.1 drive the first power transmission shaft 3.1 and the second power transmission shaft 3.2 to rotate respectively through the inner shaft driving gear 2.2 and the outer shaft driving gear 2.1, because the gear gears are connected with the power transmission shafts through bearings, therefore, in the rotation process of the power transmission shaft, all the gear gears stop rotating, only the gear-shifting driving gear which is arranged by matching the marking gear and the marking shaft synchronously rotates along with the power transmission shaft, that is, the first and second shift drive gears 8.1 and 8.2 on the first and second power transmission shafts 3.1 and 3.2 rotate simultaneously.
When a first gear needs to be engaged to start the vehicle to run, a first gear engaging switch is pressed, an electric signal is sent to a first clutch, the first clutch is separated, an outer shaft 1.1 stops rotating, a first power transmission shaft 3.1 stops, meanwhile, the electric signal is sent to an external force providing device for controlling the first gear shifting driving gear 8.1 to be engaged into the first gear, the external force providing device does not need to be explained, a plurality of linear motion modes can be realized by using electric control, such as an oil supply electromagnetic valve for controlling the oil cylinder piston to move left and right, an electric motor to rotate forwards and backwards and drive a rack or a connecting rod to move left and right, and the like, the external force providing device stirs the first gear shifting driving gear 8.1 towards one side of the first gear 6.1 through a stirring sleeve 9 outside the first gear shifting driving gear 8.1, after the external force providing device finishes acting, an electric signal is sent to the first clutch again, the first clutch is combined, the outer shaft 1.1 rotates, driving teeth 10 of the first gear shifting driving gear 8.1 enter a driven gear 11 of the first gear 6.1, and the first gear 6.1 is driven to rotate by combining with the first gear, a driven auxiliary gear 12 is arranged outside the first gear 6.1, a first gear forward gear 7.1 is meshed on the driven auxiliary gear 12, the first gear forward gear 7.1 drives a traveling shaft to rotate, and the traveling shaft drives the vehicle to travel through a rear axle of the vehicle, namely the first gear engaging traveling is completed.
Similarly, when a gear is shifted, the gear shifting switch is pressed down, the electric signal also gives a signal to the second clutch, the action on the second power transmission shaft 3.2 is the same as the action on the first power transmission shaft 3.1, the first gear action is completed, the two clutches for shifting the first gear are simultaneously actuated, and the two first gear driving gears 8.1 are simultaneously actuated to complete the first gear shifting.
When the second gear needs to be engaged after the first gear of the vehicle starts, a second gear engaging switch is pressed, an electric signal gives a signal to a first clutch, the first clutch is separated, an outer shaft 1.1 stops rotating, a first power transmission shaft 3.1 stops, a second power transmission shaft 3.2 does not stop rotating, a walking shaft still runs under the action of the second power transmission shaft 3.2, namely, the non-stop gear shifting is realized in the second gear engaging process, and the definition of power gear shifting is also included, so that after the first power transmission shaft 3.1 stops rotating, a first gear 6.1 on the first power transmission shaft 3.1 continues to rotate under the action of a first gear forward gear, the rotating speed of the first gear 6.1 is greater than that of a first gear shifting driving gear 8.1 on the first power transmission shaft 3.1, and the oblique openings of driving gears and driven main gears on the driving gears are designed, so that the first gear shifting gear 8.1 on the first power transmission shaft 3.1 is separated from the first gear 6.1 on the first power transmission shaft 3.1, finishing gear shifting, simultaneously, the electric signal gives a signal to an external force providing device, the external force providing device shifts a first gear shifting driving gear 8.1 on a first power transmission shaft 3.1 towards one side of a second gear 6.2 on the first power transmission shaft 3.1, after the shifting action is finished, a telecommunication signal is given to a first clutch again, the first clutch is combined, an outer shaft 1.1 drives the first power transmission shaft 3.1 to rotate, the first gear shifting driving gear 8.1 on the first power transmission shaft 3.1 is combined with the second gear 6.2 on the first power transmission shaft, the first gear shifting driving gear on the first power transmission shaft 3.1 drives the second gear 6.2 on the first power transmission shaft to rotate, a second forward gear is meshed on the second gear 6.2 on the first power transmission shaft 3.1, the second forward gear drives a traveling shaft to rotate, and the rotating speed provided for the traveling shaft by the second gear 6.2 is greater than that the first gear 6.1, the rotating speed of the first gear 6.1 on the second power transmission shaft 3.2 is greater than that of the first gear-shifting driving gear 8.1 on the second transmission shaft, so that the first gear-shifting driving gear 8.1 on the second power transmission shaft 3.2 can automatically separate from the first gear 6.1 on the second power transmission shaft 3.2, and automatic gear-disengaging is realized.
When the first gear-shifting driving gear 8.1 on the first power transmission shaft 3.1 is combined with the second gear 6.2, a signal is sent to the second clutch, an electric signal is sent to the second clutch after gear disengagement, the second clutch is separated, the second power transmission shaft 3.2 stops rotating, the electric signal is sent to the external force providing device, the external force providing device drives the first gear-shifting driving gear 8.1 on the second power transmission shaft 3.2 to move towards one side of the second gear on the second power transmission shaft 3.2, the second gear engaging action of the second power transmission shaft 3.2 is completed, and the second gear walking is also the walking with the two power transmission shafts providing power simultaneously.
The whole gear shifting process is completed within 1 second, the electric signal control action is rapid, and the working principle of the third gear and the fourth gear is the same as that of the first gear and the second gear, and the description is omitted.
High-low gear and reverse gear working principle: a first scribing tooth post 5.1.1 is arranged at the tail end of the first travelling shaft 5.1, a second scribing tooth ring 5.2.1 is arranged on one side, close to the first travelling shaft 5.1, of the reverse gear travelling gear 18, a scribing tooth sleeve 5.3 is arranged between the second scribing tooth ring 5.2.1 and the first scribing tooth post 5.1.1, and the scribing tooth sleeve 5.3 is sleeved on the second travelling shaft 5.2 and rotates synchronously; the high-low gear sliding sleeve 13 is sleeved on the first scribing tooth post 5.1.1, the second scribing tooth ring 5.2.1 and the scribing tooth sleeve 5.3 and can move along the axial direction of the travelling shaft, internal teeth matched with the first scribing tooth post 5.1.1, the second scribing tooth ring 5.2.1 and the scribing tooth sleeve 5.3 are arranged inside the high-low gear sliding sleeve 13, and when the high-low gear sliding sleeve 13 moves to the rightmost side in the sliding process, high-low gear travelling is realized, namely the high-low gear sliding sleeve 13 is sleeved on the first scribing tooth post 5.1.1 and the scribing tooth sleeve 5.3; when the high-low gear sliding sleeve 13 moves to the middle and is only positioned on the scribing tooth sleeve 13, the low gear walking is performed, and when the high-low gear sliding sleeve 13 moves to the leftmost side, the high-low gear sliding sleeve 13 is sleeved on the second scribing tooth ring 5.2.1 and the scribing tooth sleeve 5.3, mainly in order to separate the high-low gear sliding sleeve 13 from the low gear change gear 15 and perform reverse gear walking.
The high-gear walking is specifically described as follows: the high-gear walking can also be called as normal running, a gear engaging switch is pressed down, an external force providing device controlled by an electric signal toggles the high-low gear sliding sleeve 13 to the rightmost side, the first walking shaft 5.1 and the second walking shaft 5.2 of the walking shafts are connected through the high-low gear sliding sleeve 13 in the walking process, namely the high-low gear sliding sleeve 13 is sleeved on the first scribing tooth post 5.1 and the scribing tooth sleeve 5.3, the high-low gear sliding sleeve 13 combines the first walking shaft 5.1 and the second walking shaft 5.2 into coaxial rotation, and the walking of the tractor directly depends on the first walking shaft 5.1 and the second walking shaft 5.2 which rotate coaxially at the same speed to carry out power transmission.
Low gear walking is specifically described: the low gear control key is pressed down, the external force providing device controlled by the electric signal toggles the high-low gear sliding sleeve 13 between the first walking shaft 5.1 and the second walking shaft 5.2 to act, the high-low gear sliding sleeve 13 is toggled to the scribing gear sleeve 5.3, the first walking shaft 5.1 and the second walking shaft 5.2 are disconnected at the moment, and the power of the high-low gear sliding sleeve 13 comes from the low gear change gear 15.
Because the fourth gear 6.4 is continuously meshed with the fourth forward gear 7.4 on the first traveling shaft 5.1, the first traveling shaft 5.1 is in a rotating state and the fourth gear 6.4 is continuously in a rotating state under the working state of any one of the first gear to the fourth gear, because the fourth gear 6.4 is independently installed on the low gear transmission shaft 14 and is not connected with the power transmission shaft, the fourth gear 6.4 drives the low gear transmission shaft 14 to rotate reversely,
the four-gear 6.4 and the low-gear transmission shaft 14 can be fixedly designed, or detachably designed, or integrally designed, and are integrally forged to increase strength.
A low-gear change gear 15 is further arranged on the low-gear transmission shaft 14, the low-gear change gear 15 is sleeved on the low-gear transmission shaft 14 through a bearing, and a first driving gear ring 14.2 is arranged on one side, away from the fourth-gear 6.4, of the low-gear change gear 15; a reverse gear 16 is further arranged on the low-gear transmission shaft 14, the reverse gear 16 and the low-gear transmission shaft 14 rotate synchronously, and a second driving gear ring 14.1 is arranged on one side, close to the low-gear direction changing gear 15, of the reverse gear 16; the first and second driving ring gears 14.2, 14.1 are fitted with a moving sleeve 19 that can move over the first and second driving ring gears 14.2, 14.1.
The low gear driving teeth 13.1 are arranged outside the high-low gear sliding sleeve 13, the high-low gear sliding sleeve 13 is only positioned on the scribing tooth sleeve 13 after moving axially, meanwhile, the moving sleeve 19 moves towards one side of the low gear change gear 15, the moving sleeve 19 is sleeved on the first driving gear ring 14.2 and the second driving gear ring 14.1, and low-speed walking can be realized by changing the transmission ratio through the size change of the gears.
Low-gear power transmission line: the power of the engine is output, the engine passes through an inner shaft 1.2 and an outer shaft 1.1, then passes through an inner shaft driving gear 2.2 and an outer shaft driving gear 2.1 to respectively drive a first power transmission shaft 3.1 and a second power transmission shaft 3.2 to rotate, then drives a gear to rotate, the gear drives a first walking shaft 5.1 to rotate, the first walking shaft 5.1 is transmitted to a low gear transmission shaft 14 through a four gear forward gear 7.4, the low gear transmission shaft 14 drives a reverse gear 16 to rotate, and as a moving sleeve 19 is sleeved on a first driving gear ring 14.2 and a second driving gear ring 14.1, a low gear change gear 15 is driven to rotate, so that the low gear change gear 15 is driven to be matched with a high and low gear sliding sleeve 13, the high and low gear sliding sleeve 13 drives a second walking shaft 5.2 to rotate, and the vehicle realizes low gear walking.
The reverse gear walking is specifically described: the technical scheme is also provided with a reverse gear, when the reverse gear is needed to be engaged, a reverse gear control key is pressed down, an external force providing device controlled by an electric signal drives a moving sleeve 19 which is sleeved on a first driving gear ring 14.2 and a second driving gear ring 14.1 to move leftwards, namely the moving sleeve 19 is only positioned on the second driving gear ring 14.1, a low-gear steering gear 15 loses power, because a reverse gear walking gear 18 where the second scribing gear ring 5.2.1 is positioned is connected with a second walking shaft 5.2 through a bearing, when the reverse gear control key is pressed down, the external force providing device controlled by the electric signal drives a high-low gear sliding sleeve 13 to move leftwards, so that the high-low gear sliding sleeve 13 is sleeved on the second scribing gear ring 5.2.1 and a scribing gear sleeve 5.3, the reverse gear walking gear 18 and the second walking shaft 5.2 rotate synchronously, a reverse gear 16 turns in the same direction as a low-gear transmission shaft 14, and a low gear transmission shaft 14 turns in the opposite direction to the first walking shaft 5.1, in order to provide reverse rotation power, an intermediate wheel 17 is matched on the reverse gear 16, and the intermediate wheel 17 is meshed with a reverse gear traveling gear 18 arranged on the second traveling shaft 5.2 to provide reverse rotation for traveling of the vehicle, so that the vehicle can be backed;
reverse power transmission line: the engine power output passes through an inner shaft 1.2 and an outer shaft 1.1, then passes through an inner shaft drive gear 2.2 and an outer shaft drive gear 2.1 to respectively drive a first power transmission shaft 3.1 and a second power transmission shaft 3.2 to rotate, then drives a gear to rotate, the gear drives a first walking shaft 5.1 to rotate, the first walking shaft 5.1 is transmitted to a low gear transmission shaft 14 through a four gear forward gear 7.4, the low gear transmission shaft 14 drives a reverse gear 16 to rotate, the reverse gear 16 drives an intermediate gear 17 to rotate, the intermediate gear 17 drives a reverse gear walking gear 18 to rotate, the second walking shaft 5.2 is driven to rotate through a high and low gear sliding sleeve 13, and the vehicle realizes reverse gear walking.
The reverse gear transmission systems are also arranged in parallel, and when a reverse gear control key is pressed down, the two moving sleeves 19 respectively positioned on the first driving gear ring 14.2 and the second driving gear ring 14.1 act simultaneously.
The power transmission shaft is provided with a scribing shaft which can drive the driving gear to rotate and can realize axial movement of the shifting driving gear, an inner ring connected with the shifting driving gear and the power transmission shaft is provided with scribing teeth matched with the scribing shaft, the gear is connected with a transmission shaft through a bearing, the radial end face of the shifting driving gear close to the gear is provided with driving teeth 10 protruding outwards, the radial end face of the gear close to the driving gear is provided with driven main teeth 11 matched with the driving teeth, the driven main teeth 11 are structures protruding outwards arranged on the end face of the gear, or the driven main teeth are structures recessed inwards on the end face of the gear, according to the size of the gear, when the diameter of the gear is smaller, the driven main teeth which are recessed inwards are difficult to set, and the driven main teeth 11 can be designed into structures protruding outwards, the gear shifting outer ring is provided with driven auxiliary teeth 12, the driven auxiliary teeth 12 are meshed with the walking forward gear, the drive gear outer ring is provided with a shifting sleeve 9, the shifting sleeve 9 is in sliding connection with the gear shifting drive gear, the drive gear is in an annular array on the end face of the gear shifting drive gear, and the driven main teeth are in an annular array on the end face of the gear shifting gear.
In addition, it should be noted that although the transmission described in the embodiments is directed to a high-horsepower tractor, which is generally about 300 horsepower, or even higher, in order to improve strength, two power transmission shafts are used to simultaneously act on the traveling shaft, and power is provided to the traveling shaft, if the strength of one power transmission shaft is satisfied, specifications of the gear gears arranged on the first power transmission shaft 3.1 and the second power transmission shaft 3.2 may be changed, so as to implement multi-gear curve shifting, that is, the numbers or diameters of the first gear 6.1 to the fourth gear 6.4 on the first power transmission shaft 3.1 and the second power transmission shaft 3.2 are all different, and each gear separately drives a forward traveling gear during traveling.
Through the change, although only four gears are provided, eight forward gears with different speed per hour can be formed by controlling the high gear and the low gear in the walking process, and the reverse gear is also driven by the four gears, so that the reverse gear comprises four reverse gears with different speed per hour.
The utility model discloses a signal control system my has already reported three years ago to obtain the mandate, the known technique in this field when intelligence signal control external force provides the device action, like among the assembly line operation, certain position of article walking, after the touch-control arrives electric control switch, will produce a signal, PLC control system sends out the signal of certain unit action of control again after receiving the signal, and this is no longer repeated.
While the preferred embodiments of the present invention have been described, it should be understood that many changes can be made within the spirit of the utility model, and it is intended that all changes can be made within the scope of the utility model.
Claims (10)
1. The utility model provides a novel automatic speed change assembly that shifts, includes power input shaft, the walking axle that provides power, power input shaft and the transmission assembly between the walking axle, characterized by: the transmission assembly comprises a power transmission shaft which realizes synchronization or clearance transmission between power input shafts, a gear which is arranged on the power transmission shaft through a bearing, a gear shifting driving gear which is arranged on the power transmission shaft through a spline shaft, and a forward traveling gear which synchronously rotates with a traveling shaft, wherein the gear shifting driving gear is continuously meshed with the forward traveling gear, and the axial movement of the gear shifting driving gear can realize meshing and separation with the gear.
2. The new automatic shifting transmission assembly of claim 1, wherein: the number of the power transmission shafts is not less than two, and the gear gears on the power transmission shafts can provide power for the walking shafts independently or simultaneously.
3. The new automatic shifting transmission assembly of claim 1, wherein: and the gear shifting driving gear and the gear are matched and driven through the side surface.
4. The new automatic shifting transmission assembly of claim 1, wherein: the gear wheel comprises a plurality of gear wheels, the gear-shifting driving gear comprises a plurality of gear wheels, and the gear-shifting driving gear rotates synchronously with the power transmission shaft.
5. The new automatic shifting transmission assembly of claim 1, wherein: the power transmission device is characterized in that the number of the power input shafts is not less than two, a driving gear for driving the power transmission shaft to rotate is arranged on the power input shaft, and power can be continuously or alternatively provided for the power transmission shaft on the power input shaft.
6. The new automatic shifting transmission assembly of claim 5, wherein: the power input shafts are two and are respectively an inner shaft and an outer shaft, the inner shaft is sleeved on the outer shaft, and the driving gears are an inner shaft driving gear and an outer shaft driving gear which are respectively arranged at the tail end of the inner shaft and the tail end of the outer shaft.
7. The new automatic shifting transmission assembly of claim 6, wherein: and the power transmission shaft is provided with a transmission gear matched with the driving gear, namely a first transmission gear and a second transmission gear, and the transmission gear and the power transmission shaft synchronously rotate.
8. The new automatic shifting transmission assembly of claim 4, wherein: still include the low gear transmission shaft, one of a plurality of fender gear wheel sets up on the low gear transmission shaft to with low gear transmission shaft synchronous revolution, be equipped with low gear change gear on the low gear transmission shaft.
9. The new automatic shifting transmission assembly of claim 1, wherein: the walking shaft is designed into two sections of structures and is respectively a first walking shaft and a second walking shaft, and a high-low gear sliding sleeve for controlling the first walking shaft and the second walking shaft to be separated and combined is arranged between the first walking shaft and the second walking shaft.
10. The new automatic shifting transmission assembly of claim 8, wherein: and a reverse gear is further arranged on the low-gear transmission shaft and is matched with a reverse gear walking gear on the second walking shaft through an intermediate wheel.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121649786.1U CN215861568U (en) | 2021-07-20 | 2021-07-20 | Novel automatic gear shifting speed change assembly |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121649786.1U CN215861568U (en) | 2021-07-20 | 2021-07-20 | Novel automatic gear shifting speed change assembly |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN113417976A (en) * | 2021-07-20 | 2021-09-21 | 山东农富传动科技有限公司 | Novel automatic gear shifting speed change assembly |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113417976A (en) * | 2021-07-20 | 2021-09-21 | 山东农富传动科技有限公司 | Novel automatic gear shifting speed change assembly |
| CN113417976B (en) * | 2021-07-20 | 2024-06-25 | 山东农富传动科技有限公司 | Novel automatic gear shifting speed change assembly |
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