CN221547729U

CN221547729U - Transfer case seal assembly

Info

Publication number: CN221547729U
Application number: CN202323043889.5U
Authority: CN
Inventors: 石阳; 王飞; 刘瑞雪; 刘宏
Original assignee: Shandong Jieda Auto Parts Co ltd
Current assignee: Shandong Jieda Auto Parts Co ltd
Priority date: 2023-11-11
Filing date: 2023-11-11
Publication date: 2024-08-16
Anticipated expiration: 2033-11-11

Abstract

The utility model discloses a transfer case sealing assembly, which relates to the technical field of transfer cases and comprises a shell and an output shaft positioned in the shell, wherein a leakage-proof assembly is arranged on the surface of the output shaft and positioned at one end of the shell, the leakage-proof assembly comprises an oil seal sleeved on the surface of the output shaft, an oil sealing inner lip is fixedly connected to the inner side of the oil seal, a dust-proof inner lip is fixedly connected to the bottom of the oil sealing inner lip, and the dust-proof inner lip is positioned at the inner side of the oil seal. According to the transfer case sealing assembly, the leakage-proof assembly is arranged, so that the problem that oil leakage or sealing performance of the oil seal is affected can be caused if the oil seal, the oil seal seat and the output shaft are broken due to small axial or radial deviation between the output shaft and the oil seal in the prior art, muddy water, gravel and the like can be prevented from entering the case, and the whole vehicle can better meet severe working conditions.

Description

Transfer case seal assembly

Technical Field

The utility model relates to the technical field of transfer cases, in particular to a transfer case sealing assembly.

Background

Transfer case seal assemblies are a type of mechanical device for a vehicle driveline that is implemented by transmitting power from an engine to four wheels, in which power is transmitted from the engine through a transmission to a transfer case and then to the front and rear drive axles.

The oil seal and the output shaft of the transfer case sealing assembly of the existing part are connected in a welding mode and form an integrated structure, the connecting mode is generally stable, but flexibility cannot be provided, when small axial or radial deviation exists between the output shaft and the oil seal, the oil seal seat and the output shaft are broken, and accordingly leakage of oil can be caused or tightness of the oil seal is affected.

Disclosure of utility model

The present utility model has been made in view of the above-mentioned problems that the oil seal, the oil seal seat and the output shaft are broken if there is a small axial or radial deviation between the output shaft and the oil seal, thereby causing leakage of oil or affecting the sealing property of the oil seal.

Accordingly, it is an object of the present utility model to provide a transfer case seal assembly which aims at: the problem of current part oil blanket is connected through welded mode with the output shaft, if there is tiny axial or radial deviation between output shaft and the oil blanket, can lead to oil blanket, oil blanket seat and output shaft fracture to just can cause the leakage of oil or influence the leakproofness of oil blanket is solved.

In order to solve the technical problems, the utility model provides the following technical scheme: the utility model provides a transfer case seal assembly, its includes the casing, is located the inside output shaft of casing, the surface mounting of output shaft has the subassembly of preventing leaking, the subassembly of preventing leaking is located the one end of casing, the subassembly of preventing leaking is including cup jointing the oil blanket at output shaft surface, the inboard fixedly connected with of oil blanket seals oily inner lip, the bottom fixedly connected with that seals oily inner lip prevents dust inner lip, the dustproof inner lip is located the inboard of oil blanket, can prevent the inside that dust, impurity etc. get into the oil blanket through twice wind dust inner lip, cause the oil blanket to damage.

As a preferred version of the transfer case seal assembly of the present utility model, wherein: the bottom fixedly connected with dustproof outer lip of dustproof inner lip, dustproof outer lip is located the bottom of oil blanket, and dustproof inner lip and dustproof outer lip can prevent dust, filth and other particulate matters entering oil blanket inside, and dustproof outer lip can prevent mud water, grit etc. entering box, make whole car can better satisfy abominable operating mode.

As a preferred version of the transfer case seal assembly of the present utility model, wherein: the clamping groove is formed in one side of the oil sealing inner lip, the clamping groove is located in the oil seal, a spring ring is arranged in the clamping groove, and the spring ring can provide additional fastening force and sealing performance, so that the sealing effect is enhanced.

As a preferred version of the transfer case seal assembly of the present utility model, wherein: the surface of the output shaft is provided with a groove which is matched with one end of the oil sealing inner lip, and the groove can accommodate an oil seal and ensure that the oil seal is correctly installed on the surface of the output shaft.

As a preferred version of the transfer case seal assembly of the present utility model, wherein: the bottom fixedly connected with steel ring of oil blanket, the steel ring cup joints with the output shaft, and the steel ring is used for strengthening and supporting the oil blanket to provide extra structural support and protection.

As a preferred version of the transfer case seal assembly of the present utility model, wherein: the inside of casing has the input shaft, the spline has been seted up to the inside of casing, the spline is located the one end of input shaft, the top fixedly connected with top cap of casing, the inside bearing that still includes of casing, the input shaft passes through two sets of bearings to be fixed inside the main part, and the input shaft passes through the spline and links to each other with the power end.

As a preferred version of the transfer case seal assembly of the present utility model, wherein: one side of the input shaft is provided with a spiral bevel gear, one end of the spiral bevel gear is fixedly connected with the output shaft, the input shaft can transmit power to the spiral bevel gear and transmit power to the output shaft through the spiral bevel gear, and the output shaft is positioned in the shell through two groups of bearings.

As a preferred version of the transfer case seal assembly of the present utility model, wherein: the flange is installed to one end of output shaft, the flange is located the outside of casing, the output shaft extends to the outside of casing and carries out fixed connection with the flange, and the output shaft accessible spline transmits power to the flange on, and the degree of engagement between adjustable input shaft and the spiral bevel gear of two sets of casings when the assembly makes it keep in the optimal position to alright reduce the emergence of noise, and can improve life-span.

The utility model has the beneficial effects that:

1. The utility model can prevent dust, dirt and other particles from entering the oil seal by arranging the anti-leakage component, can prevent muddy water, gravel and the like from entering the box body, so that the whole vehicle can better meet the severe working condition, and can adapt to the tiny change of the shaft, such as radial or axial movement, even if the shaft changes to a certain extent, the spring ring can maintain pressure and keep good contact with the output shaft, and ensure that the sealing performance is not influenced, thereby solving the problems that the existing part of the oil seal is connected with the output shaft in a welding way, if tiny axial or radial deviation exists between the output shaft and the oil seal, the oil seal seat and the output shaft are broken, and oil leakage is caused or the sealing performance of the oil seal is influenced.

2. The four-wheel drive device can realize the purpose of four-wheel drive by arranging the input shaft, the output shaft, the spline, the spiral bevel gear, the flange plate and the shell, reduce the noise generated between the input shaft and the spiral bevel gear and prolong the service lives of the input shaft and the spiral bevel gear.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present utility model, the drawings that are needed in the description of the embodiments will be briefly described below, it being obvious that the drawings in the following description are only some embodiments of the present utility model, and that other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art. Wherein:

FIG. 1 is a cross-sectional view of the overall construction of the transfer case seal assembly of the present utility model.

FIG. 2 is a diagram of the leak-proof assembly versus the main structure of the transfer case seal assembly of the present utility model.

FIG. 3 is an enlarged view of the portion A of FIG. 2 of the transfer case seal assembly of the present utility model.

FIG. 4 is a schematic view of a leak-proof assembly of the transfer case seal assembly of the present utility model.

FIG. 5 is a schematic illustration of the housing structure of the transfer case seal assembly of the present utility model.

Reference numerals illustrate:

1. A housing; 11. an input shaft; 12. a spline; 13. a top cover; 14. a spiral bevel gear; 15. an output shaft; 16. a flange plate; 2. a leak prevention assembly; 21. an oil seal; 22. an oil seal inner lip; 23. a dust-proof inner lip; 24. a dust-proof outer lip; 25. a clamping groove; 26. a spring ring; 27. a groove; 28. and (3) a steel ring.

Detailed Description

In order that the above-recited objects, features and advantages of the present utility model will become more readily apparent, a more particular description of the utility model will be rendered by reference to specific embodiments thereof which are illustrated in the appended drawings.

Example 1

Referring to fig. 1-4, for a first embodiment of the present utility model, a transfer case seal assembly is provided, the transfer case seal assembly includes a housing 1, an output shaft 15 located inside the housing 1, a leakage prevention assembly 2 is mounted on a surface of the output shaft 15, and the leakage prevention assembly 2 is located at one end of the housing 1;

the anti-leakage assembly 2 comprises an oil seal 21 sleeved on the surface of the output shaft 15, an oil sealing inner lip 22 is fixedly connected to the inner side of the oil seal 21, a dustproof inner lip 23 is fixedly connected to the bottom of the oil sealing inner lip 22, the dustproof inner lip 23 is located the inner side of the oil seal 21, a dustproof outer lip 24 is fixedly connected to the bottom of the dustproof inner lip 23, the dustproof outer lip 24 is located the bottom of the oil seal 21, a clamping groove 25 is formed in one side of the oil sealing inner lip 22, the clamping groove 25 is located the inside of the oil seal 21, a spring ring 26 is arranged in the clamping groove 25, a groove 27 is formed in the surface of the output shaft 15, the groove 27 is matched with one end of the oil sealing inner lip 22, a steel ring 28 is fixedly connected to the bottom of the oil seal 21, and the steel ring 28 is sleeved with the output shaft 15.

When the oil seal 21 is installed, the steel ring 28 and the oil seal 21 are directly sleeved on the surface of the output shaft 15, and the steel ring 28 is pressed to enable the two groups of dustproof inner lips 23 and the oil seal inner lips 22 inside the oil seal 21 to slide along the surface of the output shaft 15, when the oil seal inner lips 22 are clamped with grooves 27 formed in the surface of the output shaft 15, the installation operation can be completed, and due to elasticity contained in the spring rings 26, pressure can be uniformly applied to the surface of the oil seal inner lips 22, so that the oil seal inner lips 22 are connected with the grooves 27 more tightly, leakage of lubricating oil from contact edges can be prevented, and the integrity of the lubricating oil in the transfer case is further maintained.

Because the spring ring 26 has a certain elasticity, it can adapt to the tiny change of the shaft, such as radial or axial movement, even if the shaft changes to a certain extent, the spring ring 26 can maintain the pressure and keep good contact with the output shaft 15, so as to ensure that the sealing performance is not affected, and thus, the problem that if the existing part of the oil seal 21 is connected with the output shaft 15 in a welding way, if there is a tiny axial or radial deviation between the output shaft 15 and the oil seal 21, the oil seal seat and the output shaft 15 will break, and thus, the leakage of oil will be caused or the sealing performance of the oil seal 21 will be affected will be solved.

Example 2

Referring to fig. 1-5, a second embodiment of the present utility model is shown, which differs from the first embodiment in that:

The internally mounted of casing 1 has input shaft 11, and spline 12 has been seted up to the inside of casing 1, and spline 12 is located the one end of input shaft 11, and the top fixedly connected with top cap 13 of casing 1, and spiral bevel gear 14 is installed to one side of input shaft 11, and spiral bevel gear 14's one end and output shaft 15 carry out fixed connection, and ring flange 16 is installed to the one end of output shaft 15, and ring flange 16 is located the outside of casing 1, and output shaft 15 extends to the outside of casing 1 and carries out fixed connection with ring flange 16.

The input shaft 11 is connected with the power end through the spline 12, the power end can drive the input shaft 11 to rotate, the input shaft 11 and the spiral bevel gear 14 are meshed with each other, so that the spiral bevel gear 14 can be driven to rotate in the process of rotating the input shaft 11, the spiral bevel gear 14 is fixedly connected with the output shaft 15, and the output shaft 15 is fixedly connected with the flange 16, so that the output shaft 15 and the flange 16 can be driven to rotate in the process of rotating the spiral bevel gear 14, the rear-drive motion can be driven when the flange 16 rotates, the aim of four-wheel drive can be achieved, and due to the arrangement of the spline 12, the meshing degree between the input shaft 11 and the spiral bevel gear 14 can be directly adjusted when two groups of shells 1 are installed, and the meshing area is kept to the optimal position, so that noise generated between the input shaft 11 and the spiral bevel gear 14 can be reduced, and the service life of the input shaft 11 and the spiral bevel gear 14 can be prolonged.

In addition, the optimal state of the transfer case seal assembly is:

On muddy, rough terrain, steep slope and uneven roads, better traction can be provided and the ability of the vehicle to pass obstacles and difficult terrain is improved;

The vehicle can provide stronger stability and grip on frozen and wet ground and enhance the driving control of the vehicle;

When the vehicle is towed or the load is heavy, the power can be more evenly distributed to four wheels, and the stability is improved.

The rest of the structure is the same as that of embodiment 1.

It should be noted that the above embodiments are only for illustrating the technical solution of the present utility model and not for limiting the same, and although the present utility model has been described in detail with reference to the preferred embodiments, it should be understood by those skilled in the art that the technical solution of the present utility model may be modified or substituted without departing from the spirit and scope of the technical solution of the present utility model, which is intended to be covered in the scope of the claims of the present utility model.

Claims

1. Transfer case seal assembly, including casing (1), be located inside output shaft (15) of casing (1), its characterized in that: the surface of the output shaft (15) is provided with a leakage-proof assembly (2), and the leakage-proof assembly (2) is positioned at one end of the shell (1);

The anti-leakage assembly (2) comprises an oil seal (21) sleeved on the surface of the output shaft (15), an oil sealing inner lip (22) is fixedly connected to the inner side of the oil seal (21), a dustproof inner lip (23) is fixedly connected to the bottom of the oil sealing inner lip (22), and the dustproof inner lip (23) is located on the inner side of the oil seal (21).

2. The transfer case seal assembly of claim 1 wherein: the bottom of dustproof inner lip (23) fixedly connected with dustproof outer lip (24), dustproof outer lip (24) are located the bottom of oil blanket (21).

3. The transfer case seal assembly of claim 2 wherein: a clamping groove (25) is formed in one side of the oil sealing inner lip (22), the clamping groove (25) is located in the oil seal (21), and a spring ring (26) is arranged in the clamping groove (25).

4. The transfer case seal assembly of claim 3 wherein: the surface of the output shaft (15) is provided with a groove (27), and the groove (27) is matched with one end of the oil sealing inner lip (22).

5. The transfer case seal assembly of claim 4 wherein: the bottom of oil blanket (21) fixedly connected with steel ring (28), steel ring (28) cup joints with output shaft (15).

6. The transfer case seal assembly of claim 1 wherein: the novel electric motor is characterized in that an input shaft (11) is arranged in the shell (1), a spline (12) is arranged in the shell (1), the spline (12) is located at one end of the input shaft (11), and a top cover (13) is fixedly connected to the top of the shell (1).

7. The transfer case seal assembly of claim 6 wherein: one side of the input shaft (11) is provided with a spiral bevel gear (14), and one end of the spiral bevel gear (14) is fixedly connected with the output shaft (15).

8. The transfer case seal assembly of claim 7 wherein: one end of the output shaft (15) is provided with a flange plate (16), the flange plate (16) is positioned on the outer side of the shell (1), and the output shaft (15) extends to the outer side of the shell (1) to be fixedly connected with the flange plate (16).