CN216361123U

CN216361123U - Compact transfer case assembly

Info

Publication number: CN216361123U
Application number: CN202122462386.6U
Authority: CN
Inventors: 盛锦贤
Original assignee: Zhejiang Fengli Transmission Technology Co ltd
Current assignee: Zhejiang Fengli Transmission Technology Co ltd
Priority date: 2021-10-13
Filing date: 2021-10-13
Publication date: 2022-04-22
Anticipated expiration: 2031-10-13

Abstract

The utility model discloses a compact transfer case assembly which comprises a transfer case shell, wherein a first planetary gear structure and a second planetary gear structure are arranged in the transfer case shell side by side, a front shaft transmission gear is arranged on one side of the first planetary gear structure and one side of the second planetary gear structure, a transmission belt structure is sleeved between the first planetary gear structure and the front shaft transmission gear, an input shaft penetrates through the inner parts of the first planetary gear structure and the second planetary gear structure, and a hydraulic machine is sleeved on the outer wall of the input shaft. This compact transfer case assembly can reach the purpose of having saved the automobile in-process and causing unnecessary energy loss because of planetary gear through setting up first planetary gear structure and second planetary gear structure to through setting up drive belt structure and rotating device, can reach the maintenance cost who has reduced the drive belt, saved the purpose of maintenance time and the degree of difficulty simultaneously.

Description

Compact transfer case assembly

Technical Field

The utility model relates to the technical field of automobile accessories, in particular to a compact transfer case assembly.

Background

The transfer case is a device for distributing power of the engine, and can output the power to the rear axle or to both the front and rear axles. From this perspective, it can be seen that the transfer case is actually a fitting on a four-wheel drive vehicle. With the development of the four-wheel drive technology, the transfer case is also changed all the time, and the transfer case with different styles is gradually formed, and the basic principles and the functions of the transfer case are different when the transfer case is matched with four-wheel drive vehicles with different requirements.

The prior art has the following defects or problems:

1. a planetary gear is arranged in a traditional transfer case to increase the torque of a power input shaft of an automobile, but the conventional planetary gear cannot adjust the output torque ratio, so that unnecessary energy loss can be caused in the driving process of the automobile;

2. the gear area inside traditional transfer case is owing to be integral structure, need change after the gear area damages, has not only increased the maintenance cost, has improved the degree of difficulty and the time of maintenance simultaneously.

SUMMERY OF THE UTILITY MODEL

The utility model aims to provide a compact transfer case assembly aiming at the defects in the prior art so as to solve the problems in the prior art.

In order to achieve the purpose, the utility model provides the following technical scheme: a compact transfer case assembly comprises a transfer case shell, a first planetary gear structure and a second planetary gear structure are arranged in the transfer case shell side by side, a front shaft transmission gear is arranged on one side of the first planetary gear structure and one side of the second planetary gear structure, a transmission belt structure is sleeved between the first planetary gear structure and the front shaft transmission gear and between the second planetary gear structure and the front shaft transmission gear, an input shaft penetrates through the first planetary gear structure and the second planetary gear structure, a hydraulic machine is sleeved on the outer wall of the input shaft, the hydraulic press is characterized in that hydraulic rods are arranged on two sides of the hydraulic press, a limiting shaft is arranged on one side of the input shaft, a limiting device is sleeved on the outer wall of the limiting shaft, and the first planetary gear structure and the second planetary gear structure are matched for use, so that the torque transmission ratio in the transfer case is adjusted, and the energy loss during automobile driving is reduced.

As a preferred embodiment of the present invention, the first planetary gear structure and the second planetary gear structure each include an external driven gear, a small planetary gear, an internal driving gear, and a groove, and the torque transmission ratio of the first planetary gear structure and the second planetary gear structure is 2: the external driven gear, the pinion and the internal driving gear are all meshed, gear grooves are formed in the internal and external walls of the external driven gear, the external diameter size and the tooth number of the external wall of the external driven gear are the same as those of a front shaft transmission gear, the first planetary gear structure plays a role in torque expansion and horse power improvement, and the second planetary gear structure plays a role in torque reduction and loss reduction.

According to the preferable technical scheme, the transmission belt structure comprises gear blocks, connecting holes, a first connecting rod, a second connecting rod, threaded holes and fixing bolts, rotating devices penetrate through the first connecting rod and the second connecting rod, the outer diameter of the second connecting rod is matched with the inner diameter of the connecting holes, the number of the gear blocks is a plurality, the second connecting rod is fixedly connected with the gear blocks through the threaded holes and the fixing bolts, and the first connecting rod, the second connecting rod, the threaded holes and the fixing bolts are matched for use, so that the gear blocks can be conveniently installed, and meanwhile later maintenance is facilitated.

As a preferable technical scheme, the limiting device comprises a first bearing, a fixing ring, a fixing hole and a second bearing, the first bearing is fixedly connected with the limiting shaft, the fixing ring is fixedly connected with the transfer case shell through the fixing hole, the fixing effect of the input shaft is achieved, and meanwhile the displacement effect in the power transmission process of the first planetary gear structure and the second planetary gear structure is achieved.

As a preferred technical scheme, the rotating device comprises a rotating rod and a limiting ring, the rotating rod is fixedly connected with the second connecting rod, and the rotating rod rotates around the limiting ring to achieve the effect that the gear blocks rotate mutually and are convenient to install or disassemble.

As a preferred technical scheme of the present invention, the hydraulic machine is electrically connected to an external connection, the hydraulic rod is annular, the maximum outer diameter and the minimum inner diameter of the hydraulic rod are the same as those of the groove, and the hydraulic rod is made of a high friction material and functions to extrude the first planetary gear structure and the second planetary gear structure to transmit the power of the input shaft.

Compared with the prior art, the utility model provides a compact transfer case assembly, which has the following beneficial effects:

1. according to the compact transfer case assembly, by arranging the first planetary gear structure, the second planetary gear structure, the input shaft, the hydraulic machine, the hydraulic rod, the limiting shaft, the limiting device and the front shaft transmission gear, when the compact transfer case assembly is used, power is transmitted to the first planetary gear structure and the second planetary gear structure through the input shaft, the torque transmission ratio of the first planetary gear structure to the second planetary gear structure is 2:1, when an automobile needs large torque, the hydraulic machine drives the hydraulic rod to be meshed with the inner groove of the first planetary gear structure to drive the first planetary gear structure to rotate, and similarly, when the automobile needs to reduce loss, the hydraulic machine drives the hydraulic rod to be meshed with the inner groove of the second planetary gear structure, so that torque is reduced, power transmission is improved, and unnecessary energy loss caused by the planetary gears in the running process of the automobile is saved.

2. This compact transfer case assembly, through setting up drive belt structure and rotating device, during the use, splice the gear piece each other, peg graft into the connecting hole inside with the second connecting rod, and make gear piece reciprocal anchorage through screw hole and fixing bolt, according to the above-mentioned mode, splice the gear piece once, splice to certain length back when the gear piece, this moment with gear piece and first planetary gear structure, second planetary gear structure and front axle drive gear intermeshing, and the angle through rotating device adjusting gear piece, so that better meshing, the maintenance cost of drive belt has been reduced, the time and the degree of difficulty of maintenance have been saved simultaneously.

Drawings

FIG. 1 is a schematic view of the overall structure of the present invention;

FIG. 2 is a schematic view of the first and second planetary gears of the present invention;

FIG. 3 is a schematic view of the internal structure of the planetary gear of the present invention;

FIG. 4 is a schematic view of the power input configuration of the present invention;

FIG. 5 is a schematic view of the internal structure of the position limiting device of the present invention;

FIG. 6 is a schematic illustration of a belt construction according to the present invention;

fig. 7 is a schematic structural diagram of the rotating device of the present invention.

In the figure: 1. a transfer case housing; 2. a first planetary gear arrangement; 201. an external driven gear; 202. a minor planetary gear; 203. a driving gear is arranged inside; 204. a groove; 3. a second planetary gear arrangement; 4. a front axle drive gear; 5. a drive belt structure; 501. a gear block; 502. connecting holes; 503. a first connecting rod; 504. a second connecting rod; 505. a threaded hole; 506. fixing the bolt; 6. an input shaft; 7. a hydraulic press; 8. a hydraulic lever; 9. a limiting shaft; 10. a limiting device; 1001. a first bearing; 1002. a fixing ring; 1003. a fixing hole; 1004. a second bearing; 11. a rotating device; 1101. rotating the rod; 1102. a limit ring.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

The first embodiment is as follows:

referring to fig. 1-7, a compact transfer case assembly includes a transfer case housing 1, a first planetary gear structure 2 and a second planetary gear structure 3 are arranged in the transfer case housing 1 side by side, a front axle transmission gear 4 is arranged on one side of the first planetary gear structure 2 and the second planetary gear structure 3, a transmission belt structure 5 is sleeved between the first planetary gear structure 2 and the front axle transmission gear 4 and the second planetary gear structure 3, an input axle 6 is arranged in the first planetary gear structure 2 and the second planetary gear structure 3 in a penetrating manner, a hydraulic machine 7 is sleeved on the outer wall of the input axle 6, hydraulic rods 8 are arranged on two sides of the hydraulic machine 7, a limiting axle 9 is arranged on one side of the input axle 6, a limiting device 10 is sleeved on the outer wall of the limiting axle 9, and the torque transmission ratio in the transfer case is adjusted by the cooperation of the first planetary gear structure 2 and the second planetary gear structure 3, the energy loss during the running of the automobile is reduced.

Further, the first planetary gear structure 2 and the second planetary gear structure 3 each include an external driven gear 201, a small planetary gear 202, an internal driving gear 203, and a groove 204, and the torque transmission ratio of the first planetary gear structure 2 and the second planetary gear structure 3 is 2:1, external driven gear 201, little planetary gear 202 and built-in driving gear 203 three all mesh, and the gear groove has all been seted up to external driven gear 201 built-in and outer wall, and external diameter size and outer wall tooth number of external driven gear 201 are the same with front axle drive gear 4, and first planetary gear structure 2 plays and enlarges the moment of torsion, improves the effect of horse power, and second planetary gear structure 3 plays the effect that reduces the moment of torsion, reduces the loss.

Further, the limiting device 10 comprises a first bearing 1001, a fixing ring 1002, a fixing hole 1003 and a second bearing 1004, the first bearing 1001 is fixedly connected with the limiting shaft 9, the fixing ring 1002 is fixedly connected with the transfer case shell 1 through the fixing hole 1003, the fixing function of the input shaft 6 is achieved, and meanwhile the displacement function in the power transmission process of the first planetary gear structure 2 and the second planetary gear structure 3 is achieved.

Furthermore, hydraulic press 7 and external electric connection, hydraulic stem 8 are the annular, and the biggest external diameter size and the minimum internal diameter size of hydraulic stem 8 are the same with recess 204, and hydraulic stem 8 is high friction material constitution, plays and extrudes first planetary gear structure 2 and second planetary gear structure 3 to the effect of transmission input shaft 6 power.

Example two:

referring to fig. 1 to 7, on the basis of the first embodiment, the transmission belt structure 5 includes a gear block 501, a connection hole 502, a first connection rod 503, a second connection rod 504, a threaded hole 505 and a fixing bolt 506, the rotation device 11 penetrates through the first connection rod 503 and the second connection rod 504, the outer diameter of the second connection rod 504 is matched with the inner diameter of the connection hole 502, the number of the gear blocks 501 is several, the second connection rod 504 is fixedly connected with the gear block 501 through the threaded hole 505 and the fixing bolt 506, and the first connection rod 503, the second connection rod 504, the threaded hole 505 and the fixing bolt 506 are used in cooperation, so that the gear blocks 501 can be conveniently mounted, and the later maintenance can be conveniently performed.

Further, the rotating device 11 includes a rotating rod 1101 and a limiting ring 1102, the rotating rod 1101 is fixedly connected to the second connecting rod 504, and the rotating rod 1101 rotates around the limiting ring 1102 to achieve the mutual rotation of the gear blocks 501, so as to facilitate the installation or the disassembly.

The working principle and the using process of the utility model are as follows: when the compact transfer case assembly is used, power is transmitted to the first planetary gear structure 2 and the second planetary gear structure 3 through the input shaft 6, the torque transmission ratio of the first planetary gear structure 2 to the second planetary gear structure 3 is 2:1, when an automobile needs large torque, the hydraulic machine 7 drives the hydraulic rod 8 to be meshed with the groove 204 in the first planetary gear structure 2 to drive the first planetary gear structure 2 to rotate, similarly, when the loss of the automobile needs to be reduced, the hydraulic machine 7 drives the hydraulic rod 8 to be meshed with the groove 204 in the second planetary gear structure 3, the torque is reduced, the power transmission is improved, and unnecessary energy loss caused by the planetary gears in the driving process of the automobile is saved. Meanwhile, when the transmission belt structure 5 is installed, the gear blocks 501 are mutually spliced, the second connecting rod 504 is inserted into the connecting hole 502, the gear blocks 501 are mutually fixed through the threaded holes 505 and the fixing bolts 506, the gear blocks 501 are sequentially spliced according to the above mode, after the gear blocks 501 are spliced to a certain length, the gear blocks 501 are mutually meshed with the first planetary gear structure 2, the second planetary gear structure 3 and the front shaft transmission gear 4, and the angle of the gear blocks 501 is adjusted through the rotating device 11, so that better meshing is realized, the maintenance cost of the transmission belt is reduced, and meanwhile, the maintenance time and the maintenance difficulty are saved.

Finally, it should be noted that: although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that changes may be made in the embodiments and/or equivalents thereof without departing from the spirit and scope of the utility model. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. A compact transfer case assembly characterized in that: comprises a transfer case shell (1), a first planetary gear structure (2) and a second planetary gear structure (3) are arranged in the transfer case shell (1) side by side, a front shaft transmission gear (4) is arranged on one side of the first planetary gear structure (2) and one side of the second planetary gear structure (3), a transmission belt structure (5) is sleeved between the first planetary gear structure (2), the second planetary gear structure (3) and the front shaft transmission gear (4), an input shaft (6) penetrates through the first planetary gear structure (2) and the second planetary gear structure (3), a hydraulic machine (7) is sleeved on the outer wall of the input shaft (6), hydraulic rods (8) are arranged on two sides of the hydraulic machine (7), one side of the input shaft (6) is provided with a limiting shaft (9), and the outer wall of the limiting shaft (9) is sleeved with a limiting device (10).

2. The compact transfer case assembly of claim 1, wherein: the first planetary gear structure (2) and the second planetary gear structure (3) respectively comprise an external driven gear (201), a small planetary gear (202), an internal driving gear (203) and a groove (204), and the torque transmission ratio of the first planetary gear structure (2) to the second planetary gear structure (3) is 2:1, the external driven gear (201), the small planetary gear (202) and the internal driving gear (203) are all meshed, gear grooves are formed in the internal and external walls of the external driven gear (201), and the external diameter size and the external wall tooth number of the external driven gear (201) are the same as those of the front shaft transmission gear (4).

3. The compact transfer case assembly of claim 1, wherein: the driving belt structure (5) comprises a gear block (501), a connecting hole (502), a first connecting rod (503), a second connecting rod (504), a threaded hole (505) and a fixing bolt (506), wherein a rotating device (11) penetrates through the inside of the first connecting rod (503) and the inside of the second connecting rod (504), the outer diameter of the second connecting rod (504) is matched with the inner diameter of the connecting hole (502), the number of the gear blocks (501) is a plurality of, and the second connecting rod (504) is fixedly connected with the gear block (501) through the threaded hole (505) and the fixing bolt (506).

4. The compact transfer case assembly of claim 1, wherein: the limiting device (10) comprises a first bearing (1001), a fixing ring (1002), a fixing hole (1003) and a second bearing (1004), the first bearing (1001) is fixedly connected with the limiting shaft (9), and the fixing ring (1002) is fixedly connected with the transfer case shell (1) through the fixing hole (1003).

5. A compact transfer case assembly according to claim 3 wherein: the rotating device (11) comprises a rotating rod (1101) and a limiting ring (1102), the rotating rod (1101) is fixedly connected with the second connecting rod (504), and the rotating rod (1101) rotates around the limiting ring (1102).

6. The compact transfer case assembly of claim 1, wherein: the hydraulic machine (7) is electrically connected with the external machine, the hydraulic rod (8) is annular, the maximum outer diameter and the minimum inner diameter of the hydraulic rod (8) are the same as those of the groove (204), and the hydraulic rod (8) is made of high-friction materials.