CN215334391U - Novel reverse-fit gear shifting system - Google Patents

Abstract

The utility model provides a novel reverse fit gear shifting system which comprises a driving gear and a gear matched with the driving gear, wherein the driving gear and the gear are sleeved on the same transmission shaft, the driving gear and the transmission shaft synchronously rotate, the driving gear can axially move along the transmission shaft under the action of external force and realize engagement and separation with the gear, and the gear is in sliding connection with the transmission shaft. This technical scheme is different with the tradition mode of shifting, drive gear and gear of shifting are located same transmission shaft, drive gear and gear are the meshing of side engagement, and be equipped with the bevel connection design that makes things convenient for drive gear to enter into the gear of shifting smoothly on the gear, solved the tradition mode of shifting and must use modes such as meshing cover just can put into gear, and put into gear the in-process and produce the abnormal sound, the problem of easy automatic gear shifting, this technical scheme can realize for the tractor that power shifts and provide the basis, can realize automatically controlled the gear shifting.

Description

Novel reverse-fit gear shifting system

Technical Field

The utility model relates to the technical field of mechanical transmission, in particular to a novel reverse-fit gear shifting system.

Background

At present, the technical bottleneck exists in the gearbox technology of domestic tractors, through market research, the horsepower section of the domestic tractor is mainly concentrated below 220 horsepower, the horsepower section is not mainly provided with a gearbox matched with a high-horsepower engine due to insufficient power of the engine, and a plurality of tractor factories adopting the automatic gear shifting technology are also designed and researched, but are concentrated on a low-horsepower section, and basically no more than 300 horsepower exists.

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 power reversing and is not actually automatic shifting.

At present, the mode of shifting of domestic tractor still stops the meshing cover and shifts, the driving shaft drives the action wheel and rotates, utilize the clutch effect when shifting, make the driving shaft stall, then utilize the shift fork to stir the action wheel axial, the action wheel meshes with the follow driving wheel, then the clutch is released, the driving shaft rotates, it rotates to drive the action wheel, the action wheel drives from the driving wheel rotation, it rotates to drive power output shaft again from the driving wheel, thereby speed change transmission has been realized, the meshing and the separation of two gears are shifted and are gone on two epaxial gears of two dissimilarities, shift gear shift in-process and pick gear shift gear must use the clutch cooperation just can normal use more than, current power shift gear box is that the meshing cover adds the synchronous ware and shifts gear shift, the feeling of stopping is strong, shift gear shift irregularity, lead to engine and gearbox trouble easily.

However, this process makes it difficult to achieve automatic shifting throughout the entire shifting process, formally because the clutch must be engaged.

Disclosure of Invention

The technical scheme is different from the traditional gear shifting mode, the driving gear and the gear shifting gear are positioned on the same transmission shaft, the driving gear and the gear shifting gear are meshed in a side meshing mode, and the gear is provided with a bevel opening which is convenient for the driving gear to smoothly enter the gear shifting gear.

The technical scheme includes that the novel reverse fitting gear shifting system comprises a driving gear and a gear matched with the driving gear, the driving gear and the gear are sleeved on the same transmission shaft, the driving gear and the transmission shaft rotate synchronously, the driving gear can axially move along the transmission shaft under the action of external force and can be meshed with and separated from the gear, and the gear is connected with the transmission shaft in a sliding mode.

Preferably, the transmission shaft is a marking shaft which can drive the driving gear to rotate and can realize axial movement of the driving gear.

Preferably, the inner ring of the driving gear connected with the transmission shaft is provided with marking teeth matched with the marking shaft.

Preferably, the gear is connected with the transmission shaft through a bearing.

Preferably, the radial end face of the driving gear, which is close to the gear position gear, is provided with driving teeth protruding outwards.

Preferably, the radial end face of the gear, which is close to the driving gear, is provided with driven main teeth matched with the driving teeth.

Preferably, the driven main gear is arranged on the end face of the gear and protrudes outwards, or the driven main gear is arranged on the end face of the gear and protrudes inwards.

Preferably, the outer ring of the gear shifting gear is provided with driven auxiliary teeth, and walking output transmission teeth are meshed on the driven auxiliary teeth.

Preferably, a toggle sleeve is arranged on the outer ring of the driving gear, and the toggle sleeve is connected with the driving gear in a sliding manner.

Preferably, the drive teeth are in an annular array on the end face of the drive teeth, and the driven main teeth are in an annular array on the end face of the gear position gear.

The beneficial effects of the technical scheme are as follows: this technical scheme is different with the tradition mode of shifting, drive gear and gear of shifting are located same transmission shaft, drive gear and gear are the meshing of side engagement, and be equipped with the bevel connection design that makes things convenient for drive gear to enter into the gear of shifting smoothly on the gear, it just can put into gear to have solved the tradition mode of shifting and have used modes such as meshing cover to produce the abnormal sound, the problem of easy automatic gear-disengaging, this technical scheme can realize for the tractor that power shifts and provide the basis, can realize automatically controlled the gear shifting, and realize autopilot.

Drawings

Fig. 1 is a schematic structural diagram of a novel reverse-fit gear shifting system.

Fig. 2 is a schematic perspective view of fig. 1.

Fig. 3 is a schematic view of the application of fig. 1 in a gearbox.

Detailed Description

For convenience of explanation, the novel reverse-fit gear shifting system of the utility model is explained in detail below with reference to the accompanying drawings.

As shown in fig. 1 to 3, a novel reverse-fit gear shifting system comprises a driving gear 1 and gear gears matched with the driving gear 1, wherein only two gear gears are drawn in the drawing, namely a first gear 2.1 and a second gear 2.2, the specific gear number can be designed according to the requirements of a gearbox, one driving gear moves left and right and is combined with the two gear gears respectively to control two gears respectively, and if the gear is four gears, two driving gears can be arranged.

The driving gear 1 and the gear gears are sleeved on the same transmission shaft 3, the driving gear 1 and the transmission shaft 3 synchronously rotate, the driving gear 1 can axially move along the transmission shaft 3 under the action of external force and realize engagement and separation with the gear gears, the gear gears are in sliding connection with the transmission shaft 3, and a bearing 8 is generally adopted; the transmission shaft 3 is provided with a marking shaft which can drive the driving gear 1 to rotate and can realize axial movement of the driving gear 1; the inner ring of the driving gear 1 connected with the transmission shaft 3 is provided with marking teeth matched with the marking shaft; the gear is connected with the transmission shaft 3 through a bearing; the radial end surface of the driving gear 1 close to the gear is provided with driving teeth 4 protruding outwards; the radial end face, close to the driving gear 1, of the gear wheel is provided with a driven main gear matched with the driving gear 4, the driven main gear on the first-gear wheel 2.1 is a structure which is arranged on the end face of the gear wheel and protrudes outwards, and is called a first-gear driven main gear 6.1 here, the diameter of the first-gear wheel 2.1 is relatively small, and is limited by a size structure, so that the side face of the first-gear wheel 2.1 is inconvenient to machine the driven main gear with an inwards-concave structure, and the driven main gear on the second-gear wheel 2.2 is a structure which is arranged on the end face of the gear wheel and is inwards-concave, and is called a second-gear driven main gear 6.2 here; the outer ring of the gear 2 is provided with driven auxiliary teeth, the driven auxiliary teeth are engaged with tractor walking output transmission teeth, the driven auxiliary teeth on the first gear 2.1 are called first gear driven auxiliary teeth 7.1, and the driven auxiliary teeth on the second gear 2.2 are called second gear driven auxiliary teeth 7.2; a toggle sleeve 5 is arranged on the outer ring of the driving gear 1 of the first gear, and the toggle sleeve 5 is connected with the driving gear 1 in a sliding way; the driving teeth 4 are arranged on the end faces of the driving teeth 4 in an annular array mode, and the driven main teeth are arranged on the end faces of the gear gears in an annular array mode.

The working principle is as follows: as shown in fig. 2, the end of the transmission shaft 3 is actually sleeved with a driving wheel 9 connected with the engine and capable of driving the transmission shaft 3 to rotate synchronously, after the engine is started, the transmission shaft 3 rotates, and at this time, the first gear 2.1 and the second gear 2.2 are connected with the transmission shaft 3 through bearings, so that the transmission shaft 3 only drives the driving gear 1 to rotate, the driving gear 1 is matched with the transmission shaft 3 through the marking teeth and the marking shafts, the vehicle is ready to start and hang a gear, the toggle sleeve 5 moves towards one side of the first gear 2.1 under the action of external force, one side of the driving gear 1 and one side of the first gear 2.1 is provided with a driving tooth 4 protruding outwards, the driving tooth is provided with an oblique opening, the driving gear 1 can be smoothly combined with a first gear driven tooth 6.1 arranged on the first gear 2.1 in the process of axial movement while rotating, the first gear driven gear 6.1 is also provided with an oblique opening, after the two are smoothly combined, the driving gear 1 drives the first gear 2.1 to rotate, a first gear driven auxiliary gear 7.1 is arranged outside the first gear 2.1, the first gear driven auxiliary gear 7.1 is connected with a power output gear 10 for walking of a tractor, the power output gear for walking is sleeved on the walking shaft 11, and then the first gear walking is finished.

The system is essentially assembled in a transmission box and decorated with two sets of reverse sleeve gear shifting systems which are arranged in parallel, when a gear is hung, the gear 2.1 of the first gear of the two sets of systems simultaneously rotates and acts on the same tractor walking shaft 11 to simultaneously provide power.

When two gears need to be shifted, the core of the technology is also provided, the technical problem that the conventional tractor cannot realize power shifting is solved, because the transmission shafts 3 of two sets of reverse-fit gear shifting systems arranged in parallel respectively and independently provide power, when the gear needs to be shifted from the first gear to the second gear, the driving gear 1 on the first rotating shaft 3 is separated from the gear 2.1 of the first gear and is connected into the gear 2.2 of the second gear by external force, the gear 2.2 of the second gear rotates at the moment, the secondary driven auxiliary gear 7.1 outside the gear 2.2 of the second gear is connected with the power output gear 10 for walking of the tractor, the power output gear for walking is sleeved on the walking shaft 11, it needs to be noted that the driving gear 1 on the second transmission shaft 3 is not separated from the gear 2.1 of the first gear, the operation of shifting from the first gear to the second gear is carried out on the first transmission shaft 3, the gear 2 on the second transmission shaft 3 continues to provide power output for the walking of the tractor, therefore, power gear shifting is realized, and the gear shifting process is not stopped.

After the driving gear 1 on the first transmission shaft 3 and the second gear 2.2 complete the combination action, the rotation speed provided by the second gear 2.2 for the walking shaft 11 is greater than the rotation speed provided by the first gear 2.1 on the second transmission shaft 3 for the walking shaft, which can cause the rotation speed of the walking shaft 11 to be greater than the rotation speed provided by the first gear, so that the driving gear 1 on the second transmission shaft 3 can automatically separate from the first gear driven main gear 6.1 of the first gear 2.1 to complete the gear backing, then under the action of external force, the driving gear on the second transmission shaft is combined with the second gear 2.2 again, the two sets of reverse-fit traditional systems are realized again to provide power, and the changes of other gears are the same as the same.

While the preferred embodiments of the present invention have been described in detail, it should be apparent that many changes can be made within the inventive concept of the present invention, and it is intended that all changes that can be made within the inventive concept of the present invention are encompassed by the present invention.

Claims (10)

1. The utility model provides a novel contrary cover shift system that closes, includes drive gear (1), with drive gear (1) complex gear, characterized by: drive gear (1) and gear suit are on same transmission shaft (3), drive gear (1) and transmission shaft (3) synchronous rotation, drive gear (1) can be along transmission shaft (3) axial displacement under the exogenic action and realize and gear between the gear meshing and the separation, sliding connection between gear and transmission shaft (3).

2. The novel reverse nesting shift system of claim 1, wherein: the transmission shaft (3) is provided with a scribing shaft which can drive the driving gear (1) to rotate and can realize the axial movement of the driving gear (1).

3. The novel reverse nesting shift system of claim 2, wherein: and the inner ring of the driving gear (1) connected with the transmission shaft (3) is provided with scribing teeth matched with the scribing shaft.

4. The novel reverse nesting shift system of claim 1, wherein: the gear is connected with the transmission shaft (3) through a bearing.

5. The novel reverse nesting shift system of claim 1, wherein: and the radial end face of the driving gear (1) close to the gear is provided with driving teeth (4) protruding outwards.

6. The novel reverse nesting shift system of claim 5, wherein: and the radial end face of the gear, which is close to the driving gear (1), is provided with driven main teeth matched with the driving teeth (4).

7. The novel reverse nesting shift system of claim 6, wherein: the driven main gear is a structure which is arranged on the end face of the gear and protrudes outwards, or the driven main gear is a structure which is arranged on the end face of the gear and protrudes inwards.

8. The novel reverse fitting shift system according to any one of claims 1 to 7, wherein: and the outer ring of the gear is provided with driven auxiliary teeth, and walking output transmission teeth are meshed on the driven auxiliary teeth.

9. The novel reverse nesting shift system of claim 1, wherein: the outer ring of the driving gear (1) is provided with a shifting sleeve (5), and the shifting sleeve (5) is connected with the driving gear (1) in a sliding mode.

10. The novel reverse nesting shift system of claim 6, wherein: the driving gear (4) is in an annular array on the end face of the driving gear (4), and the driven main gear is in an annular array on the end face of the gear.

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