Ten-gear manual gearbox capable of being additionally provided with power takeoff assembly

Abstract

The utility model relates to the technical field of gearboxes, in particular to a ten-gear manual gearbox capable of being additionally provided with a power takeoff assembly. The power takeoff device comprises a main box and an auxiliary box, the main box comprises a front shell, a rear shell and an internal main box transmission mechanism, a power takeoff assembly is arranged on the side portion of the front shell, and the auxiliary box comprises an auxiliary box shell, a rear cover and an internal auxiliary box transmission mechanism. Wherein the main box transmission mechanism comprises a main box input shaft, a main box intermediate shaft, a main box output shaft and a main box gear shifting mechanism; the auxiliary box transmission mechanism comprises an auxiliary box input shaft, an auxiliary box output shaft and an auxiliary box gear shifting mechanism. And the power takeoff assembly transmits power through a second-gear gear of the intermediate shaft of the main box. The overall structure of the main box and the auxiliary box is improved, ten-gear manual speed change is achieved through the four-section type shell, the borne maximum input torque is 280 N * m, the requirement for additionally installing a main box intermediate shaft and a power takeoff assembly is met, and power of the gearbox is reasonably distributed.

Description

TECHNICAL FIELD

[0001] The utility model relates to gearbox technical field, concretely relates to a ten gear manual gearbox of take force ware assembly can be added. BACKGROUND

[0002] In the existing gearbox technology, with the improvement of the requirements of the vehicle on the power transmission efficiency and multifunctionality, how to increase the gear position and be compatible with the take force ware assembly on the basis of ensuring the smooth gear shifting and strong bearing capacity becomes a difficult problem to be solved. For example, Chinese patent CN217502467U discloses a sub-gearbox structure capable of identifying intermediate shaft speed, a main gearbox shaft is deep into the sub-gearbox as a power source, and a long intermediate shaft extends to the inner cavity of the take force ware as an input shaft. However, this scheme still faces challenges: due to the limitation of compact structure, it is difficult to meet the requirements of high torque input and take force ware installation. Specifically, how to improve the torque bearing capacity and take force ware compatibility without sacrificing the compactness of the structure is the key direction of the current technical improvement. SUMMARY

[0003] The technical problem to be solved by the utility model is to overcome the shortcomings of the prior art and provide a ten gear manual gearbox to which a take force ware assembly can be added.

[0004] The technical scheme adopted by the utility model is as follows:

[0005] A ten gear manual gearbox to which a take force ware assembly can be added, comprising a main gearbox and a sub-gearbox, the main gearbox comprising a front shell, a rear shell and a main gearbox transmission mechanism inside, the side of the front shell being provided with a take force ware assembly, the sub-gearbox comprising a sub-gearbox shell, a rear cover and a sub-gearbox transmission mechanism inside, wherein:

[0006] The main gearbox transmission mechanism comprises a main gearbox input shaft, a main gearbox intermediate shaft, a main gearbox output shaft and a main gearbox gear shifting mechanism, wherein: a constant meshing gear is arranged on the main gearbox input shaft and meshes with the corresponding gear arranged on the main gearbox intermediate shaft, and power is transmitted from the power transmitter to the main gearbox intermediate shaft; a driving gear and a synchronizer are arranged on the main gearbox output shaft, and the driving gear meshes with the engagement sleeve of the synchronizer; the main gearbox gear shifting mechanism is a manual gear shifting mechanism provided with ten gears, and the main gearbox gear shifting mechanism drives the synchronizer to move axially through the gear shifting yoke of the corresponding gear position; the main gearbox intermediate shaft is provided with a driven gear, and the driven gear is locked with the main gearbox output shaft through the gear of the corresponding gear shifting; and power is transmitted from the main gearbox intermediate shaft to the sub-gearbox transmission mechanism;

[0007] The sub-gearbox transmission mechanism comprises a sub-gearbox input shaft, a sub-gearbox output shaft and a sub-gearbox gear shifting mechanism, wherein: the sub-gearbox input shaft is connected with the main gearbox intermediate shaft through a gear; the sub-gearbox gear shifting mechanism is a high / low gear shifting mechanism, and the sub-gearbox input shaft is locked with the gear of the high / low gear through the high / low gear rocker arm; and power is transmitted from the sub-gearbox input shaft to the sub-gearbox output shaft.

[0008] The technical scheme improves the overall structure of the main box and the auxiliary box, realizes ten-gear manual transmission through a four-section shell, bears a maximum input torque of 280 N*m, meets the installation requirement of the main box intermediate shaft and the power take-off assembly, and reasonably distributes the power of the transmission. Specifically, the main box input shaft receives power from the engine and transmits the power to the main box intermediate shaft through the constantly meshing gear; the driving gear on the main box output shaft and the synchronizer make the shifting process smoother and improve the transmission efficiency; the driven gear on the main box intermediate shaft is locked with the main box output shaft through the gear corresponding to the shift; the power take-off assembly is arranged on the side of the front shell, and the power take-off assembly transmits power through the second gear of the main box intermediate shaft, so that the power take-off function is conveniently integrated; the auxiliary box input shaft is connected with the main box intermediate shaft through a gear, so as to ensure the continuous transmission of power, and the auxiliary box shifting mechanism allows the power to be switched between high gear and low gear to adapt to different driving requirements.

[0009] In addition, the ten-gear manual transmission box with the power take-off assembly according to the utility model can have the following additional technical features:

[0010] According to an embodiment of the utility model, the front end of the main box input shaft is connected with the driven disc of the clutch through a spline, and the clutch is fixed to the engine flywheel; when the clutch is engaged, the power of the engine is transmitted to the main box input shaft through the flywheel.

[0011] The technical scheme connects the front end of the main box input shaft with the driven disc of the clutch, and ensures that the clutch is fixed to the engine flywheel, so as to realize the effective transmission of the engine power to the main box input shaft.

[0012] According to an embodiment of the utility model, the main box intermediate shaft adopts a stepped optical shaft, and the stepped optical shaft is provided with driven gears for realizing different gear shifting; the power take-off assembly transmits power through the second gear of the main box intermediate shaft.

[0013] The technical scheme adopts the stepped optical shaft for the main box intermediate shaft, and sets the driven gears for different gear shifting, and the power take-off assembly transmits power through the second gear, so as to realize the flexible distribution of power and the integration of the power take-off function.

[0014] According to an embodiment of the utility model, the synchronizer is directly fixed on the main box output shaft through a spline, and rotates synchronously with the main box output shaft; the synchronizer slides along the spline in the axial direction, and its moving direction is controlled by the shifting fork.

[0015] The technical scheme directly fixes the synchronizer on the main box output shaft, and the synchronizer slides along the spline in the axial direction, and its moving direction is controlled by the shifting fork, so as to ensure the synchronous rotation of the synchronizer and the main box output shaft and the accurate control of the shifting.

[0016] According to one embodiment of the utility model, the synchronizer is provided with gears of one to five gears, and the synchronizer's engaging sleeve is used to switch different speed ratios for gear locking.

[0017] The technical scheme is provided with one to five gears in the forward direction and one to five gears in the reverse direction, so that ten-gear manual transmission is realized.

[0018] According to one embodiment of the utility model, the main box and the auxiliary box form a four-section shell, the center distance of the main box is 85mm, the center distance of the auxiliary box is 100mm, and the maximum input torque is 280N*m.

[0019] In the technical scheme, the 85mm of the main box is a smaller center distance, which is used to reduce weight, reduce manufacturing cost or adapt to specific space layout; the 100mm of the auxiliary box is a larger center distance, which is used to bear larger torque and load; the overall four-section shell is used to optimize the strength and transmission efficiency of different transmission parts.

[0020] Compared with the prior art, the utility model has the following beneficial effects:

[0021] The utility model improves the overall structure of the main box and the auxiliary box, realizes ten-gear manual transmission through the four-section shell, bears the maximum input torque of 280N*m, meets the installation requirement of the main box intermediate shaft and the power takeoff assembly, and reasonably distributes the power of the transmission. BRIEF DESCRIPTION OF DRAWINGS

[0022] Fig. 1 It is the front view of the utility model.

[0023] Fig. 2 It is the sectional view of the utility model.

[0024] Fig. 3 It is the side view of the utility model.

[0025] In the drawing: 1, front shell; 2, rear shell; 3, auxiliary box shell; 4, rear cover; 5, power takeoff assembly; 6, main box input shaft; 7, main box intermediate shaft; 8, main box output shaft; 9, synchronizer; 10, main box gear shifting mechanism; 11, auxiliary box input shaft; 12, auxiliary box gear shifting mechanism; 13, auxiliary box output shaft. DETAILED DESCRIPTION

[0026] The technical scheme in the embodiments of the utility model will be clearly and completely described in combination with the drawings in the embodiments of the utility model. Obviously, the described embodiments are part of the embodiments of the utility model, rather than all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor belong to the scope of protection of the utility model.

[0027] Example 1

[0028] like Figs. 1 to 3 As shown, this embodiment provides a ten-speed manual transmission that can be fitted with a power take-off (PTO) assembly, including a main gearbox and an auxiliary gearbox. The main gearbox includes a front housing 1, a rear housing 2, and an internal main gearbox transmission mechanism. A PTO assembly 5 is disposed on the side of the front housing 1. The auxiliary gearbox includes an auxiliary gearbox housing 3, a rear cover 4, and an internal auxiliary gearbox transmission mechanism, wherein:

[0029] The main gearbox transmission mechanism includes a main gearbox input shaft 6, a main gearbox intermediate shaft 7, a main gearbox output shaft 8, and a main gearbox shifting mechanism 10. Specifically: the main gearbox input shaft 6 is equipped with a constant mesh gear that meshes with a corresponding gear on the main gearbox intermediate shaft 7, transmitting power from the generator to the main gearbox intermediate shaft 7; the main gearbox output shaft 8 is equipped with a drive gear and a synchronizer 9, with the drive gear meshing with the engaging sleeve of the synchronizer 9; the main gearbox shifting mechanism 10 is a ten-speed manual shifting mechanism, which pushes the synchronizer 9 axially through shift forks of the corresponding gears; the main gearbox intermediate shaft 7 is equipped with a driven gear, which is locked to the main gearbox output shaft 8 through the corresponding shift gear, transmitting power from the main gearbox intermediate shaft 7 to the auxiliary gearbox transmission mechanism.

[0030] The auxiliary gearbox transmission mechanism includes an auxiliary gearbox input shaft 11, an auxiliary gearbox output shaft 13, and an auxiliary gearbox shifting mechanism 12. The auxiliary gearbox input shaft 11 is connected to the main gearbox intermediate shaft 7 via gears. The auxiliary gearbox shifting mechanism 12 is a high / low gear shifting mechanism. The auxiliary gearbox input shaft 11 is locked with the high / low gear through a high / low gear rocker arm. Power is transmitted from the auxiliary gearbox input shaft 11 to the auxiliary gearbox output shaft 13.

[0031] like Figs. 1 to 3 As shown, this technical solution improves the overall structure of the main gearbox and auxiliary gearbox, achieving ten-speed manual transmission through a four-section housing, withstanding a maximum input torque of 280 N*m, meeting the installation requirements of the main gearbox intermediate shaft 7 and the power take-off assembly 5, and rationally distributing the power of the gearbox. Specifically, the main gearbox input shaft 6 receives power from the engine and transmits it to the main gearbox intermediate shaft 7 through a constant mesh gear; the driving gear and synchronizer 9 on the main gearbox output shaft 8 make the shifting process smoother and improve transmission efficiency; the driven gear on the main gearbox intermediate shaft 7 is locked to the main gearbox output shaft 8 through the corresponding shifting gear; the power take-off assembly 5 is located on the side of the front housing 1, and the power take-off assembly 5 transmits power through the second gear of the main gearbox intermediate shaft 7, conveniently integrating the power take-off function; the auxiliary gearbox input shaft 11 is connected to the main gearbox intermediate shaft 7 through gears to ensure continuous power transmission, while the auxiliary gearbox shifting mechanism 12 allows power switching between high and low gears to adapt to different driving needs.

[0032] In addition, the ten-speed manual transmission that can be equipped with a power take-off assembly according to the present invention may also have the following additional technical features:

[0033] According to one embodiment of the present application, the front end of the main box input shaft 6 is connected to the driven disc of the clutch through the spline, and the clutch is fixed to the engine flywheel; when the clutch is engaged, the power of the engine is transmitted to the main box input shaft 6 through the flywheel.

[0034] The present technical solution connects the front end of the main box input shaft 6 to the driven disc of the clutch, and ensures that the clutch is fixed to the engine flywheel, thereby realizing effective transmission of engine power to the main box input shaft 6.

[0035] According to one embodiment of the present application, the main box intermediate shaft 7 adopts a stepped optical shaft, and a driven gear for switching different gears is arranged thereon; the power take-off assembly 5 transmits power through the second gear of the main box intermediate shaft 7.

[0036] The present technical solution adopts a stepped optical shaft for the main box intermediate shaft 7 and sets a driven gear for switching different gears, and the power take-off assembly 5 transmits power through the second gear, thereby realizing flexible distribution of power and integration of the power take-off function.

[0037] According to one embodiment of the present application, the synchronizer 9 is directly fixed on the main box output shaft 8 through the spline, and rotates synchronously with the main box output shaft 8; the synchronizer 9 slides along the spline in the axial direction, and its moving direction is controlled by the shift fork.

[0038] The present technical solution directly fixes the synchronizer 9 on the main box output shaft 8, and makes it slide along the spline in the axial direction, and the moving direction is controlled by the shift fork, thereby ensuring synchronous rotation of the synchronizer 9 and the main box output shaft 8 and accurate control of gear shifting.

[0039] According to one embodiment of the present application, the synchronizer 9 is provided with gears from first to fifth gears, and the engagement sleeve of the synchronizer 9 is used to switch different speed ratios for gear locking.

[0040] The present technical solution is provided with gears from first to fifth gears in the forward direction and gears from first to fifth gears in the reverse direction, thereby realizing ten-gear manual transmission.

[0041] According to one embodiment of the present application, the main box and the auxiliary box constitute a four-section shell, the center distance of the main box is 85mm, the center distance of the auxiliary box is 100mm, and the maximum input torque is 280N*m.

[0042] In the present technical solution, the 85mm of the main box is a smaller center distance, which is used to reduce weight, reduce manufacturing cost or adapt to specific space layout; the 100mm of the auxiliary box is a larger center distance, which is used to bear larger torque and load; the overall four-section shell is used to optimize the strength and transmission efficiency of different transmission parts.

[0043] The use process of the above-mentioned embodiment is as follows:

[0044] As Figs. 1 to 3 shown, the engine power is transmitted to the clutch, after the clutch is engaged, the power is transmitted to the main box input shaft 6 through the spline; the always meshing gear on the main box input shaft 6 is engaged with the gear on the main box intermediate shaft 7, and the power is transmitted to the main box intermediate shaft 7; at the same time, the power take-off assembly 5 is arranged on the side of the front housing 1, and the power is transmitted through the second gear on the main box intermediate shaft 7 to realize the power take-off function; in the main box part, the driving gear on the main box output shaft 8 is engaged with the synchronizer 9, and the shift fork pushes the synchronizer 9 to move axially to realize the switching of different gears; the power is transmitted to the main box intermediate shaft 7 through the main box output shaft 8 and the corresponding gear locking; in the auxiliary box part, the auxiliary box input shaft 11 is connected with the main box intermediate shaft 7 through the gear, the power is transmitted to the auxiliary box input shaft 11, the auxiliary box shift mechanism 12 controls the locking of the auxiliary box input shaft 11 and the high / low gear through the high / low gear rocker arm, and the high / low gear switching of the power is realized, and finally the power is output by the auxiliary box output shaft 13. The whole transmission adopts a four-section shell structure, optimizes the strength and transmission efficiency of the transmission part, and meets the requirement of maximum input torque 280N*m.

[0045] Although the utility model is described in detail by referring to the drawings and combining the preferred embodiments, the utility model is not limited to this. On the premise of not departing from the spirit and essence of the utility model, those skilled in the art can make various equivalent modifications or replacements to the embodiments of the utility model, and these modifications or replacements should be in the coverage range of the utility model / any skilled in the art in the technical range disclosed by the utility model can easily think of changes or replacements, and these changes or replacements should be covered in the protection range of the utility model. Therefore, the protection range of the utility model should be subject to the protection range of the claims.

Claims

1. A ten-speed manual transmission that can be retrofitted with a power take-off assembly, characterized by, The main box includes a front shell (1), a rear shell (2) and a main box transmission mechanism inside, the side of the front shell (1) is provided with a power take-off assembly (5), the auxiliary box includes an auxiliary box shell (3), a rear cover (4) and an auxiliary box transmission mechanism inside, wherein: The main box transmission mechanism includes a main box input shaft (6), a main box intermediate shaft (7), a main box output shaft (8) and a main box shifting mechanism (10), wherein: the main box input shaft (6) is provided with a constant meshing gear, which is engaged with the corresponding gear provided on the main box intermediate shaft (7), and the power is transmitted from the power take-off to the main box intermediate shaft (7); the main box output shaft (8) is provided with a driving gear and a synchronizer (9), the driving gear is engaged with the engagement sleeve of the synchronizer (9); the main box shifting mechanism (10) is a manual shifting mechanism provided with ten gears, the main box shifting mechanism (10) drives the synchronizer (9) to move axially through the shifting yoke of the corresponding gear position; the main box intermediate shaft (7) is provided with a driven gear, the driven gear is locked with the main box output shaft (8) through the gear corresponding to the shift, and the power is transmitted from the main box intermediate shaft (7) to the auxiliary box transmission mechanism; The auxiliary box transmission mechanism includes an auxiliary box input shaft (11), an auxiliary box output shaft (13) and an auxiliary box shifting mechanism (12), wherein: the auxiliary box input shaft (11) is connected with the main box intermediate shaft (7) through a gear; the auxiliary box shifting mechanism (12) is a high-low gear shifting mechanism, which controls the locking of the auxiliary box input shaft (11) and the high / low gear through the high-low gear rocker arm, and the power is transmitted from the auxiliary box input shaft (11) to the auxiliary box output shaft (13).

2. The ten-speed manual transmission with the optional power takeoff assembly according to claim 1, characterized in that The front end of the main box input shaft (6) is connected with the driven disc of the clutch through the spline, and the clutch is fixed on the engine flywheel by bolts; when the clutch is engaged, the power of the engine is transmitted to the main box input shaft (6) through the flywheel.

3. The ten-speed manual transmission with the optional power takeoff assembly of claim 1, wherein, The main box intermediate shaft (7) adopts a stepped optical axis, and a driven gear for realizing different gear switching is arranged thereon; the power take-off assembly (5) transmits power through the second gear of the main box intermediate shaft (7).

4. The ten-speed manual transmission with the optional power takeoff assembly of claim 1, wherein, The synchronizer (9) is directly fixed on the main box output shaft (8) through the spline, and rotates synchronously with the main box output shaft (8); the synchronizer (9) slides axially along the spline, and its moving direction is controlled by the shifting yoke.

5. The ten-speed manual transmission with the power take off add-on assembly of claim 1, wherein, The synchronizer (9) is provided with gears one to five, and different speed ratios are switched through the engagement sleeve of the synchronizer (9) for gear locking.

6. The ten-speed manual transmission with the power take off add-on assembly of claim 1, wherein, The main box and the auxiliary box form a four-section shell, the center distance of the main box is 85mm, the center distance of the auxiliary box is 100mm, and the maximum input torque is 280N*m.

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