Integrated bridge assembly and vehicle

Abstract

The present invention discloses an integrated bridge assembly and a vehicle, which relates to the field of vehicle technology and aims to solve the problem that the amount of gear oil in the bridge housing is large and the oil stirring efficiency is low. The integrated bridge assembly includes: a bridge housing, a half shaft, a reducer and a sealing cylinder. An installation space is provided in the bridge housing, and a first half shaft installation hole connected to the installation space is provided on the bridge housing; at least part of the half shaft extends into the installation space through the first half shaft installation hole; the reducer is arranged in the installation space and connected to the half shaft to drive the half shaft to rotate around its axis direction; the sealing cylinder is sleeved on the outer peripheral wall of the half shaft, and at least part of the sealing cylinder extends into the installation space through the first half shaft installation hole and is sealed and connected to the reducer.

Description

Technical Field

[0001] The present invention relates to the technical field of vehicles, and in particular to an integrated bridge assembly and a vehicle. Background Art

[0002] The bridge housing is the base for installing the main reducer, differential, half-axle, and wheel assembly. Its main function is to support and protect the main reducer, differential, and half-axle, etc. The existing mature solution is to connect the reducer housing and the bridge housing, apply sealant on the joint surface, and the bridge housing acts as a container for gear oil. However, because the bridge housing is a load-bearing part, the bridge housing will be vertically bent and deformed during the load-bearing process, and the bridge housing and the housing will be misaligned, which will cause the sealant to fail and there is a risk of oil leakage; in addition, in order to meet the strength and rigidity requirements, the square tubes, round tubes, and bridge packages on both sides of the bridge housing are large in outline size, and the bridge housing is designed to meet the rim distance. When oil is poured into the bridge housing, the amount of oil is large, and the oil stirring efficiency is low, resulting in energy waste.

[0003] Therefore, the large amount of gear oil in the bridge housing and the low oil stirring efficiency are problems that need to be solved. Summary of the invention

[0004] The object of the present invention is to provide an integrated axle assembly and a vehicle, aiming to solve the problem that the amount of gear oil in the axle housing is large and the oil stirring efficiency is low.

[0005] In order to achieve the above object, the present invention adopts the following technical scheme:

[0006] The present invention provides an integrated bridge assembly, comprising: a bridge housing, a half-shaft, a reducer and a sealing cylinder, wherein an installation space is provided in the bridge housing, and a first half-shaft installation hole connected to the installation space is provided on the bridge housing; at least part of the half-shaft extends into the installation space through the first half-shaft installation hole; the reducer is arranged in the installation space and is connected to the half-shaft to drive the half-shaft to rotate around its axial direction; the sealing cylinder is sleeved on the outer peripheral wall of the half-shaft, and at least part of the sealing cylinder extends into the installation space through the first half-shaft installation hole and is sealed and connected to the reducer.

[0007] The integrated bridge assembly provided in the embodiment of the present application seals and connects the sealing cylinder with the reducer, so that the gear oil in the reducer can flow into the sealing cylinder and the gear oil in the reducer can be located between the sealing cylinder and the half-shaft, thereby reducing the amount of oil, improving the oil stirring efficiency, and avoiding energy waste.

[0008] In some embodiments, the integrated bridge assembly further includes: a half-shaft sleeve, which is sleeved on the outer peripheral wall of the half-shaft, and at least a portion of the half-shaft sleeve is connected to the bridge housing in the first half-shaft mounting hole; and a sealing sleeve is sealingly connected to the half-shaft sleeve.

[0009] In this way, the half-shaft sleeve is connected to the bridge housing, and the sealing cylinder is sealed to the half-shaft sleeve, so that the gear oil in the reducer is located between the sealing cylinder and the half-shaft sleeve, reducing the oil volume, improving the oil stirring efficiency, avoiding energy waste, and preventing the gear oil from leaking out of the bridge housing from the connecting gap between the half-shaft sleeve and the bridge housing.

[0010] In some embodiments, the reducer includes: a reducer housing, a second half-shaft mounting hole connected to the first half-shaft mounting hole is provided on the reducer housing, and the sealing tube at least partially extends into the second half-shaft mounting hole and is connected to the reducer housing.

[0011] In this way, connecting the sealing cylinder to the reducer housing can make the gear oil in the reducer located in the sealing cylinder and the reducer housing, reducing the amount of oil, improving the oil stirring efficiency, and avoiding energy waste. The sealing cylinder at least partially extends into the second half-shaft mounting hole, which can prevent the gear oil from leaking out of the bridge housing from the connecting gap between the reducer housing and the bridge housing.

[0012] In some embodiments, the reducer further includes a limit member, which is disposed in the second half-shaft mounting hole, and an end surface of the sealing cylinder away from one end of the half-shaft sleeve contacts the limit member.

[0013] In this way, when the sealing cylinder is installed, the end surface of the sealing cylinder away from the half-shaft sleeve contacts the limiter, and the limiter can limit the sealing cylinder to prevent the position of the sealing cylinder from deviating, causing the sealing cylinder to fail to work effectively.

[0014] In some embodiments, the integrated bridge assembly further includes: a first sealing ring, which is disposed between the reducer and the sealing cylinder and abuts against both the sealing cylinder and the reducer.

[0015] In this way, the first sealing ring is arranged between the reducer and the sealing cylinder and abuts against both the sealing cylinder and the reducer, which can prevent the gear oil in the reducer from flowing out of the gap between the sealing cylinder and the reducer, thereby improving the sealing performance of the sealing cylinder.

[0016] In some embodiments, a first limiting groove is opened on the outer peripheral wall of the sealing tube, and the first limiting groove is arranged around the axial direction of the sealing tube; the first sealing ring is arranged in the first limiting groove, and the first sealing ring abuts against the bottom wall of the first limiting groove.

[0017] In this way, the first sealing ring is arranged in the first limiting groove, and the first sealing ring abuts against the bottom wall of the first limiting groove. The first limiting groove can limit the first sealing ring, which can prevent the position of the first sealing ring from shifting during use, causing gear oil leakage and affecting the normal operation of the reducer.

[0018] In some embodiments, the integrated bridge assembly further includes: a second sealing ring, which is disposed between the half-shaft sleeve and the sealing cylinder and abuts against both the sealing cylinder and the half-shaft sleeve.

[0019] In this way, the second sealing ring is arranged between the half-shaft sleeve and the sealing cylinder, and abuts against both the sealing cylinder and the half-shaft sleeve, which can prevent the gear oil in the reducer from flowing out of the gap between the sealing cylinder and the half-shaft sleeve, thereby improving the sealing performance of the sealing cylinder.

[0020] In some embodiments, a second limiting groove is opened on the outer peripheral wall of the sealing tube, and the second limiting groove is arranged around the axial direction of the sealing tube; the second sealing ring is arranged in the second limiting groove, and the second sealing ring abuts against the bottom wall of the second limiting groove.

[0021] In this way, the second sealing ring is arranged in the second limiting groove, and the second sealing ring abuts against the bottom wall of the second limiting groove. The second limiting groove can limit the second sealing ring, which can prevent the second sealing ring from shifting in position during use, causing gear oil leakage and affecting the normal operation of the reducer.

[0022] In some embodiments, the integrated bridge assembly also includes: a second sealing ring and a first connecting piece, the second sealing ring is arranged between the half-shaft sleeve and the sealing cylinder, and abuts against both the half-shaft sleeve and the sealing cylinder; a first connecting hole is provided on the outer wall surface of the sealing cylinder, and the first connecting hole is provided between the first sealing ring and the second sealing ring; a second connecting hole is provided on the bridge housing, and the first connecting piece at least partially passes through the second connecting hole to be connected with the first connecting hole.

[0023] In this way, the first connecting member at least partially passes through the second connecting hole and is connected to the first connecting hole, thereby fixing the sealing cylinder, avoiding positional displacement of the sealing cylinder that would prevent the sealing cylinder from working normally, and improving the stability of the sealing cylinder during sealing.

[0024] In some embodiments, a mounting groove is provided on the inner wall of the sealing cylinder.

[0025] In this way, when installing the sealing cylinder, the tooling can control the movement of the sealing cylinder in the first half-shaft mounting hole through the mounting groove, and the clamping part of the tooling can extend into the mounting groove to prevent the clamping part from sliding, so that the tooling can install the sealing cylinder more conveniently and accurately, and prevent the sealing cylinder from falling off or misaligned during the installation process.

[0026] The present application also provides a vehicle, comprising the above-mentioned integrated bridge assembly.

[0027] It can be understood that since the vehicle provided in the present application includes the integrated bridge assembly as described above, the two can solve the same problem and achieve the same effect, and the present application will not elaborate on them one by one here. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings required for use in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0029] Figure 1 A schematic diagram of the structure of an integrated bridge assembly provided by the present invention;

[0030] Figure 2 A cross-sectional view of an integrated bridge assembly provided by the present invention;

[0031] Figure 3 A schematic diagram of the installation of a sealing cylinder provided by the present invention;

[0032] Figure 4 A schematic diagram of the sealing cylinder structure provided by the present invention;

[0033] Figure 5 A cross-sectional view of a sealing cylinder provided by the present invention.

[0034] Figure numerals: integrated bridge assembly, 100; bridge housing, 10; first half-shaft mounting hole, 11; half-shaft, 20; reducer, 30; sealing cylinder, 40; half-shaft sleeve, 50; reducer housing, 31; second half-shaft mounting hole, 32; limiting member, 33; first sealing ring, 60; first limiting groove, 41; second sealing ring, 70; second limiting groove, 42; first connecting member, 80; first connecting hole, 43; second connecting hole, 12; mounting groove, 44. DETAILED DESCRIPTION

[0035] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0036] In the description of the present invention, it should be understood that the terms "upper", "lower", "left", "right", "front", "back", "inside", "outside" and the like indicate directions or positional relationships based on the directions or relative positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and therefore cannot be understood as a limitation on the present invention. Unless otherwise specified, the above-mentioned directional description can be flexibly set in the process of actual application under the condition that the relative positional relationship shown in the accompanying drawings is satisfied.

[0037] The terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of the features. In the description of the present invention, unless otherwise specified, "plurality" means two or more.

[0038] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection. It can be directly connected, or indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0039] In the embodiments of the present invention, the terms "comprises", "comprising" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, article or device including a series of elements includes not only those elements, but also includes other elements not explicitly listed, or also includes elements inherent to such process, article or device. In the absence of further restrictions, an element defined by the sentence "comprising a ..." does not exclude the presence of other identical elements in the process, article or device including the element.

[0040] In the embodiments of the present invention, words such as "exemplary" or "for example" are used to indicate examples, illustrations or explanations. Any embodiment or design described as "exemplary" or "for example" in the embodiments of the present invention should not be interpreted as being more preferred or more advantageous than other embodiments or designs. Specifically, the use of words such as "exemplary" or "for example" is intended to present related concepts in a specific way.

[0041] In the description of this specification, specific features, structures, materials or characteristics may be combined in an appropriate manner in any one or more embodiments or examples.

[0042] The present application provides a vehicle, which may be a pure electric vehicle, an oil-electric hybrid vehicle, a plug-in hybrid vehicle, an extended-range electric vehicle, a fuel vehicle, etc. The vehicle may also be a car, a van, a bus, a truck, a trailer, etc.

[0043] The vehicle may include: a power system, which is arranged on the vehicle body and is used to provide power for the vehicle. The front wheels and / or the rear wheels are driven and connected to the power system. The power system may include a drive motor, a battery pack that provides electrical energy to the drive motor, and an electronic control device connected to the drive motor for controlling the drive motor.

[0044] The vehicle may also include: an integrated bridge assembly 100, especially in an automobile transmission system, which is a highly integrated mechatronic drive system that integrates a traditional drive axle with a motor, a transmission and other components to achieve a smaller footprint, lower dead weight, higher transmission efficiency and longer cruising range.

[0045] The integrated bridge assembly 100 may include: a bridge housing 10, a half-shaft 20 and a reducer 30, etc. The integrated bridge assembly is a base for installing the main reducer 30, differential, half-shaft 20, and wheel assembly. Its main function is to support and protect the main reducer 30, differential and half-shaft 20, etc.

[0046] To facilitate understanding, some basic concepts of terms or technologies involved in the embodiments of the present invention are first briefly introduced and explained.

[0047] Among them, the bridge housing 10 serves as a supporting and containing part for the main reducer 30, differential, half shaft 20 and other components, which can support and protect these key components to ensure that they can work normally; the bridge housing 10 bears the road reaction force and reaction torque transmitted from the wheels, and transmits them to the frame or body through the suspension system, so as to realize the normal driving of the car; the bridge housing 10 also has the function of fixing the axial relative position of the left and right driving wheels to ensure that the wheels can run according to the predetermined trajectory; the bridge housing 10 is filled with lubricating oil to lubricate gears, bearings and other components, and the closed shell can prevent dirt from invading and protect the working environment of the components inside the shell.

[0048] The working principle of the reducer 30 is based on the principle of gear transmission. When a power source such as an engine or an electric motor outputs power, it is transmitted to the internal gear set through the input shaft of the reducer 30. Since the number of teeth of the input gear is less than the number of teeth of the output gear, according to the speed ratio relationship of the gear transmission, the speed of the output shaft will decrease, and the torque will increase accordingly. In this way, the reducer 30 can convert the high-speed and low-torque power of the power source into low-speed and high-torque power to meet the driving needs of the vehicle.

[0049] In addition, the half shaft 20 is an important part of the automobile transmission system, and its main function is to transmit power between the differential and the driving wheel. The half shaft 20 is usually composed of a mandrel, a bearing, a housing, etc. The mandrel is the main structure of the half shaft 20, the bearing is used to support and rotate the mandrel, and the housing is used to fix the half shaft 20 and protect its internal components. The half shaft 20 and the housing are connected so that the half shaft 20 and the reducer 30 are in a sealed state.

[0050] The half-axle 20 is one of the important media for the transmission of engine power. The engine transmits power to the mandrel through the transmission system, and the mandrel then transmits the power to the wheels, allowing the vehicle to travel. The half-axle 20 is located below the center of gravity of the vehicle, so the weight of the vehicle is mainly concentrated on the half-axle 20. At the same time, the half-axle 20 also needs to withstand the weight of the vehicle body and the reaction force of the external road surface, as well as the impact and vibration of bumps and obstacles encountered during driving. The quality and performance of the half-axle 20 have an important impact on the driving stability of the vehicle. If the strength of the half-axle 20 is insufficient or the internal components are damaged, it will cause the vehicle to swing or shake while driving, and even endanger driving safety.

[0051] The present invention provides an integrated axle assembly 100, which aims to solve the problem that the amount of gear oil in the axle housing 10 is large and the oil stirring efficiency is low.

[0052] In order to achieve the above object, the present invention adopts the following technical scheme:

[0053] like Figure 1 and Figure 2 As shown, the present invention provides an integrated bridge assembly 100, including: a bridge housing 10, a half shaft 20, a reducer 30 and a sealing cylinder 40, an installation space is provided in the bridge housing 10, and a first half shaft installation hole 11 connected to the installation space is provided on the bridge housing 10.

[0054] In addition, the shape of the installation space can be set to correspond to the reducer 30, so that the bridge housing 10 and the reducer 30 are more tightly connected. The installation space can also have an interference fit with the reducer 30, which makes it more convenient to install the reducer 30. This application does not limit this.

[0055] In some embodiments, at least a portion of the half-shaft 20 extends into the installation space through the first half-shaft installation hole 11 .

[0056] In addition, the cross-section of the first semi-axle mounting hole 11 can be square, circular or polygonal, the cross-section of the first semi-axle mounting hole 11 can also be an irregular shape, and the cross-section of the first semi-axle mounting hole 11 can also change continuously along its length direction, which is not limited in the present application.

[0057] In some embodiments, the reducer 30 is disposed in the installation space and connected to the half-shaft 20 to drive the half-shaft 20 to rotate around its axial direction; the sealing cylinder 40 is sleeved on the outer peripheral wall of the half-shaft 20, and at least a portion of the sealing cylinder 40 extends into the installation space through the first half-shaft mounting hole 11 and is sealed and connected to the reducer 30.

[0058] The cross section of the sealing tube 40 may be square, circular or polygonal, the cross section of the sealing tube 40 may be irregular, and the cross section of the sealing tube 40 may change along its length, which is not limited in the present application.

[0059] In addition, the sealing connection method between the sealing cylinder 40 and the reducer 30 can be threaded joint sealing, flange joint sealing, clamp joint sealing, O-ring sealing, welding joint sealing, locking joint sealing or rubber sealing, etc., which is not limited in this application.

[0060] Among them, the integrated bridge assembly 100 can also include: one or more motors, which are arranged in the reducer 30. The reducer 30 can also include a differential that is transmission-connected to the half-shaft 20. The end of the half-shaft 20 away from the reducer 30 can also be provided with components such as a hub, as well as connecting components connecting the various components. This application does not limit this.

[0061] The integrated bridge assembly 100 provided in the embodiment of the present application seals and connects the sealing cylinder 40 with the reducer 30. The gear oil in the reducer 30 can flow into the sealing cylinder 40, so that the gear oil in the reducer 30 is located between the sealing cylinder 40 and the half-shaft 20, thereby reducing the amount of oil, improving the oil stirring efficiency, and avoiding energy waste.

[0062] It should be noted that when installing the sealing cylinder 40, first push the sealing cylinder 40 completely into the bridge housing 10 through the first half-shaft mounting hole 11 to avoid conflict between the sealing cylinder 40 and the reducer 30, then install the reducer 30 in the installation space of the bridge housing 10, dock the reducer 30 with the first half-shaft mounting hole 11 of the bridge housing 10, then push the end of the sealing cylinder 40 close to the reducer 30 into the reducer 30, so that the sealing cylinder 40 is sealed and connected to the reducer 30, and finally pass the half-shaft 20 through the bridge housing 10 and the reducer 30 to connect the half-shaft 20 with the differential in the reducer 30.

[0063] In a possible structural design, Figure 1 and Figure 2 As shown, the integrated bridge assembly 100 may include two half-axles 20, the bridge housing 10 includes two first half-axle mounting holes 11, the two half-axles 20 pass through the two first half-axle mounting holes 11 respectively and are arranged on opposite sides of the reducer 30, the integrated bridge assembly 100 may also include two sealing cylinders 40, at least parts of the two sealing cylinders 40 extend into the installation space through the first half-axle mounting holes 11 respectively, and the two sealing cylinders 40 are both sealed and connected to the reducer 30.

[0064] In this way, sealing cylinders 40 are provided on both sides of the reducer 30, so that the gear oil in the reducer 30 can flow into the sealing cylinders 40 at both ends, and the gear oil in the reducer 30 can be located between the sealing cylinder 40 and the half shaft 20, thereby reducing the amount of oil, improving the oil stirring efficiency, and avoiding energy waste.

[0065] In some embodiments, Figure 1 and Figure 2As shown, the integrated bridge assembly 100 also includes: a half-shaft sleeve 50, which is sleeved on the outer peripheral wall of the half-shaft 20, and at least a portion of the half-shaft sleeve 50 is connected to the bridge housing 10 in the first half-shaft mounting hole 11; and a sealing sleeve 40 is sealed and connected to the half-shaft sleeve 50.

[0066] Among them, the half-axle sleeve 50 is connected to one end of the first half-axle mounting hole 11. The half-axle sleeve 50 can be partially located in the first half-axle mounting hole 11, or it can be completely located in the first half-axle mounting hole 11. The end of the half-axle sleeve 50 away from the reducer 30 can extend out of the first half-axle mounting hole 11, or it can be flush with the end surface of the first half-axle mounting hole 11 away from the reducer 30. This application does not limit this.

[0067] In addition, the integrated axle assembly 100 may further include one or more half-axle sleeves 50 , which is not limited in the present application.

[0068] In addition, the connection method between the half-axle sleeve 50 and the bridge housing 10 can be riveting, welding or bolting, etc., which is not limited in the present application.

[0069] In this way, the half-shaft sleeve 50 is connected to the bridge housing 10, and the sealing cylinder 40 is sealedly connected to the half-shaft sleeve 50, so that the gear oil in the reducer 30 is located between the sealing cylinder 40 and the half-shaft sleeve 50, thereby reducing the amount of oil, improving the oil stirring efficiency, avoiding energy waste, and preventing the gear oil from leaking from the connecting gap between the half-shaft sleeve 50 and the bridge housing 10.

[0070] In some embodiments, Figure 1 and Figure 2 As shown, the reducer 30 includes: a reducer housing 31, a second half-shaft mounting hole 32 communicating with the first half-shaft mounting hole 11 is provided on the reducer housing 31, and the sealing cylinder 40 at least partially extends into the second half-shaft mounting hole 32 and is connected to the reducer housing 31.

[0071] The reducer housing 31 may include two relatively arranged sub-housings, with a motor, a differential, etc. disposed between the two sub-housings, and a sealing rubber ring may also be disposed at the connection between the two sub-housings to ensure that the reducer 30 is a sealed space.

[0072] In addition, the hole diameter of the second semi-axle mounting hole 32 may be the same as or different from the hole diameter of the first semi-axle mounting hole 11 , and this application does not limit this.

[0073] In this way, the sealing cylinder 40 is connected to the reducer housing 31, so that the gear oil in the reducer 30 is located in the sealing cylinder 40 and the reducer housing 31, reducing the amount of oil, improving the oil stirring efficiency, and avoiding energy waste. The sealing cylinder 40 at least partially extends into the second half-shaft mounting hole 32, which can prevent the gear oil from leaking out of the bridge housing 10 from the connecting gap between the reducer housing 31 and the bridge housing 10.

[0074] In some embodiments, Figure 1 and Figure 3 As shown, the reducer 30 further includes a stopper 33 , which is disposed in the second half-shaft mounting hole 32 , and an end surface of the sealing cylinder 40 away from the half-shaft sleeve 50 contacts the stopper 33 .

[0075] In this way, when installing the sealing cylinder 40, part of the sealing cylinder 40 is pushed into the reducer 30, and the end face of the sealing cylinder 40 away from the half-shaft sleeve 50 contacts the limit piece 33. The limit piece 33 can limit the sealing cylinder 40 to avoid the position deviation of the sealing cylinder 40, which causes the sealing cylinder 40 to fail to work effectively.

[0076] In a possible structural design, the limit member 33 can be set in a ring shape, and the limit member 33 is axially arranged around the second half-shaft mounting hole 32, and the end surface of the sealing cylinder 40 away from the half-shaft sleeve 50 abuts against the side of the limit member 33.

[0077] In this way, the limit member 33 is set in a ring shape, and the end face of the sealing cylinder 40 away from the half-shaft sleeve 50 abuts against the side of the limit member 33, which can avoid the position deviation of the sealing cylinder 40. Compared with setting the limit member 33 as a protrusion or other shapes, setting the limit member 33 in a ring shape can make the force on the sealing cylinder 40 more uniform, thereby avoiding the sealing cylinder 40 from being offset or misplaced due to uneven force, so that the reducer 30 cannot be effectively sealed.

[0078] Among them, the limiting member 33 can also be set as a limiting protrusion, a limiting block or a limiting strip, which is not limited in this application.

[0079] In some embodiments, Figure 2 , Figure 3 and Figure 4 As shown, the integrated bridge assembly 100 further includes: a first sealing ring 60 , which is disposed between the reducer 30 and the sealing cylinder 40 , and abuts against both the sealing cylinder 40 and the reducer 30 .

[0080] In this way, the first sealing ring 60 is arranged between the reducer 30 and the sealing cylinder 40, and abuts against both the sealing cylinder 40 and the reducer 30, which can prevent the gear oil in the reducer 30 from flowing out of the gap between the sealing cylinder 40 and the reducer 30, thereby improving the sealing performance of the sealing cylinder 40.

[0081] The material of the first sealing ring 60 can be rubber, plastic or a composite material, which is not limited in the present application.

[0082] In a possible structural design, the first sealing ring 60 is made of elastic rubber material, and is sleeved on one end of the sealing tube 40 close to the reducer 30. The inner diameter of the first sealing ring 60 is smaller than the outer diameter of the sealing tube 40, so that the first sealing ring 60 and the sealing tube 40 have an interference fit. When the first sealing ring 60 is located in the connecting hole of the second half shaft 20 of the reducer 30, the inner wall surface of the connecting hole of the first half shaft 20 and the outer wall surface of the sealing tube 40 are both in contact with the first sealing ring 60, and the reducer 30 and the sealing tube 40 squeeze the first sealing ring 60.

[0083] In this way, the first sealing ring 60 and the sealing cylinder 40 are interference fit, so that the sealing cylinder 40 and the first sealing ring 60 can fit closely together to prevent the first sealing ring 60 from falling off from the sealing cylinder 40, and the sealing performance between the first sealing ring 60 and the sealing cylinder 40 can be improved, so that the reducer 30 and the sealing cylinder 40 squeeze the first sealing ring 60, and the first sealing ring 60 can also be fixed so that the first sealing ring 60 is located between the reducer 30 and the sealing cylinder 40, so as to prevent the first sealing ring 60 from falling off from between the reducer 30 and the sealing cylinder 40, and the sealing performance of the first sealing ring 60 can be improved.

[0084] In some embodiments, Figure 3 and Figure 4 As shown, a first limiting groove 41 is opened on the outer peripheral wall of the sealing cylinder 40, and the first limiting groove 41 is arranged around the axial direction of the sealing cylinder 40; the first sealing ring 60 is arranged in the first limiting groove 41, and the first sealing ring 60 abuts against the bottom wall of the first limiting groove 41.

[0085] Among them, the first sealing ring 60 can be partially arranged in the first limiting groove 41, and the first sealing ring 60 abuts against the bottom wall of the first limiting groove 41 to realize the sealing ability of the first sealing ring 60. The first sealing ring 60 also abuts against the side wall surface of the first limiting groove 41 so that the first limiting groove 41 can limit the first sealing ring 60 to prevent the first sealing ring 60 from sliding or dislocation.

[0086] In this way, the first sealing ring 60 is arranged in the first limiting groove 41, and the first sealing ring 60 is abutted against the bottom wall of the first limiting groove 41. The first limiting groove 41 can limit the first sealing ring 60, which can prevent the position of the first sealing ring 60 from shifting during use, causing gear oil leakage and affecting the normal operation of the reducer 30.

[0087] In addition, the plane surrounded by the first limiting groove 41 may be perpendicular to the axial direction of the sealing cylinder 40 , or may not be perpendicular to the axial direction of the sealing cylinder 40 , and this application does not limit this.

[0088] In a possible structural design, the first limiting groove 41 is coaxially arranged with the sealing cylinder 40 , and a plane surrounded by the first limiting groove 41 is perpendicular to the axial direction of the sealing cylinder 40 .

[0089] In this way, compared with setting the first limiting groove 41 at an angle, not only can the material of the first sealing ring 60 in the first limiting groove 41 be reduced, but the first limiting groove 41 can also limit the first sealing ring 60 more stably to prevent the first sealing ring 60 from falling off from the first limiting groove 41.

[0090] In some embodiments, Figure 3 and Figure 4 As shown, the integrated bridge assembly 100 further includes: a second sealing ring 70 , which is disposed between the half-shaft sleeve 50 and the sealing cylinder 40 , and abuts against both the sealing cylinder 40 and the half-shaft sleeve 50 .

[0091] The specific description of the second sealing ring 70 may refer to the description of the first sealing ring 60 , which will not be elaborated in this application.

[0092] In addition, the first sealing ring 60 and the second sealing ring 70 can be made of the same material or different materials, and the structural designs of the first sealing ring 60 and the second sealing ring 70 can be the same or different, which is not limited in the present application.

[0093] In this way, the second sealing ring 70 is arranged between the half-shaft sleeve 50 and the sealing cylinder 40, and abuts against both the sealing cylinder 40 and the half-shaft sleeve 50, which can prevent the gear oil in the reducer 30 from flowing out from the gap between the sealing cylinder 40 and the half-shaft sleeve 50, thereby improving the sealing performance of the sealing cylinder 40.

[0094] In some embodiments, Figure 3 and Figure 4 As shown, a second limiting groove 42 is opened on the outer peripheral wall of the sealing cylinder 40, and the second limiting groove 42 is arranged around the axial direction of the sealing cylinder 40; the second sealing ring 70 is arranged in the second limiting groove 42, and the second sealing ring 70 abuts against the bottom wall of the second limiting groove 42.

[0095] The specific description of the second limiting groove 42 may refer to the description of the first limiting groove 41 , and will not be elaborated herein.

[0096] In addition, the structural designs of the first limiting groove 41 and the second limiting groove 42 may be the same or different, and this application does not limit this.

[0097] In this way, the second sealing ring 70 is set in the second limiting groove 42, and the second sealing ring 70 is abutted against the bottom wall of the second limiting groove 42. The second limiting groove 42 can limit the second sealing ring 70, which can prevent the position of the second sealing ring 70 from shifting during use, causing gear oil leakage and affecting the normal operation of the reducer 30.

[0098] In some embodiments, Figure 2 , Figure 3 and Figure 4 As shown, the integrated bridge assembly 100 also includes: a second sealing ring 70 and a first connecting member 80, the second sealing ring 70 is arranged between the half-shaft sleeve 50 and the sealing cylinder 40, and abuts against both the half-shaft sleeve 50 and the sealing cylinder 40; the outer wall surface of the sealing cylinder 40 is provided with a first connecting hole 43, and the first connecting hole 43 is arranged between the first sealing ring 60 and the second sealing ring 70; the bridge housing 10 is provided with a second connecting hole 12, and the first connecting member 80 at least partially passes through the second connecting hole 12 and is connected to the first connecting hole 43.

[0099] Among them, the integrated bridge assembly 100 may include one or more first connecting parts 80, the outer wall surface of the sealing cylinder 40 may be provided with one or more first connecting holes 43, and the first connecting hole 43 is arranged between the first sealing ring 60 and the second sealing ring 70; the bridge housing 10 may be provided with one or more second connecting holes 12, which is not limited in the present application.

[0100] In this way, the first connecting member 80 at least partially passes through the second connecting hole 12 and is connected to the first connecting hole 43, thereby fixing the sealing cylinder 40, avoiding positional displacement of the sealing cylinder 40 that causes the sealing cylinder 40 to fail to work normally, and improving the stability of the sealing cylinder 40 when sealing.

[0101] In a possible structural design, the integrated bridge assembly 100 may include two first connecting parts 80, the outer wall surface of the sealing cylinder 40 may be provided with two first connecting holes 43, and the two first connecting holes 43 are both arranged between the first sealing ring 60 and the second sealing ring 70, the two first connecting holes 43 are arranged on opposite sides of the sealing cylinder 40, the bridge housing 10 may be provided with two second connecting holes 12, and the first connecting part 80 at least partially passes through the second connecting hole 12 to be connected to the first connecting hole 43.

[0102] In this way, the two first connecting members 80 can limit the sealing cylinder 40 on the opposite sides of the sealing cylinder 40, so that the force on the sealing cylinder 40 is more uniform, avoiding the sealing cylinder 40 being subjected to a force in a single direction, causing the sealing cylinder 40 to deviate to one side and making the sealing cylinder 40 unable to work normally.

[0103] In a possible structural design, the first connecting hole 43 can be configured as a ring that surrounds the sealing cylinder 40 axially.

[0104] In this way, the first connecting member 80 can pass through the first connecting hole 43 on the bridge housing 10 and be connected to the first connecting hole 43. The first connecting hole 43 can limit the first connecting member 80 to limit the sealing tube 40 and avoid misalignment of the sealing tube 40. The first connecting hole 43 can be set as a ring surrounding the axial direction of the sealing tube 40. When installing the first connecting member 80, the first connecting member 80 and the first connecting hole 43 can be aligned in the axial direction of the sealing tube 40 without rotating the sealing tube 40, thereby improving the efficiency of installing the first connecting member 80.

[0105] In some embodiments, Figure 3 and Figure 5 As shown, the inner wall surface of the sealing cylinder 40 is provided with a mounting groove 44 .

[0106] The mounting groove 44 may be a square groove, a circular groove, or an annular groove, etc., which is not limited in the present application.

[0107] In this way, when installing the sealing cylinder 40, the tooling can control the movement of the sealing cylinder 40 in the first half-shaft mounting hole 11 through the mounting groove 44, and the clamping part of the tooling can extend into the mounting groove 44 to prevent the clamping part from sliding, so that the tooling can install the sealing cylinder 40 more conveniently and accurately, and prevent the sealing cylinder 40 from falling off or misaligned during the installation process.

[0108] In a possible structural design, the mounting groove 44 is arranged on the inner wall surface of the sealing cylinder 40 in an axial direction surrounding the sealing cylinder 40 .

[0109] In this way, the clamping component of the tooling can be easily inserted into the installation groove 44 to prevent the clamping component from sliding, so that the tooling can install the sealing cylinder 40 more conveniently and accurately to prevent the sealing cylinder 40 from falling off or misalignment during the installation process.

[0110] The above are only specific embodiments of the present invention, but the protection scope of the present invention is not limited thereto. Any person skilled in the art who is familiar with the technical field can easily think of changes or substitutions within the technical scope disclosed by the present invention, which should be included in the protection scope of the present invention. Therefore, the protection scope of the present invention should be based on the protection scope of the claims.

Claims

1. An integrated axle assembly (100), characterized in that: include: An axle housing (10), wherein an installation space is provided in the axle housing (10), and a first half-axle installation hole (11) communicating with the installation space is provided on the axle housing (10); A half shaft (20), at least a portion of the half shaft (20) extending into the installation space through the first half shaft installation hole (11); A reducer (30) is arranged in the installation space and connected to the half shaft (20) to drive the half shaft (20) to rotate around its axis; A sealing cylinder (40) is sleeved on the outer peripheral wall of the half shaft (20), and at least a portion of the sealing cylinder (40) extends into the installation space through the first half shaft installation hole (11) and is sealed and connected to the reducer (30); A half-axle sleeve (50) is sleeved on the outer peripheral wall of the half-axle (20), and at least a portion of the half-axle sleeve (50) is connected to the bridge housing (10) in the first half-axle mounting hole (11); the sealing cylinder (40) is sealed and connected to the half-axle sleeve (50).

2. The integrated bridge assembly (100) according to claim 1, characterized in that: The reducer (30) comprises: A reducer housing (31), wherein the reducer housing (31) is provided with a second half-shaft mounting hole (32) communicating with the first half-shaft mounting hole (11), and the sealing cylinder (40) at least partially extends into the second half-shaft mounting hole (32) and is connected to the reducer housing (31).

3. The integrated bridge assembly (100) according to claim 2, characterized in that: The reducer (30) further comprises: A limiting member (33) is arranged in the second half-shaft mounting hole (32), and an end surface of the sealing cylinder (40) away from one end of the half-shaft sleeve (50) contacts the limiting member (33).

4. The integrated bridge assembly (100) according to claim 1, characterized in that: The integrated bridge assembly (100) further includes: A first sealing ring (60), wherein the first sealing ring (60) is disposed between the reducer (30) and the sealing cylinder (40), and is in contact with both the sealing cylinder (40) and the reducer (30).

5. The integrated bridge assembly (100) according to claim 4, characterized in that: A first limiting groove (41) is provided on the outer peripheral wall of the sealing cylinder (40), and the first limiting groove (41) is arranged around the axial direction of the sealing cylinder (40); The first sealing ring (60) is arranged in the first limiting groove (41), and the first sealing ring (60) abuts against the bottom wall of the first limiting groove (41).

6. The integrated bridge assembly (100) according to claim 1, characterized in that: The integrated bridge assembly (100) further includes: A second sealing ring (70), wherein the second sealing ring (70) is disposed between the half-shaft sleeve (50) and the sealing cylinder (40), and is in contact with both the half-shaft sleeve (50) and the sealing cylinder (40).

7. The integrated bridge assembly (100) according to claim 6, characterized in that: A second limiting groove (42) is provided on the outer peripheral wall of the sealing cylinder (40), and the second limiting groove (42) is arranged around the axial direction of the sealing cylinder (40); The second sealing ring (70) is arranged in the second limiting groove (42), and the second sealing ring (70) abuts against the bottom wall of the second limiting groove (42).

8. The integrated bridge assembly (100) according to claim 4, characterized in that: The integrated bridge assembly (100) further includes: A second sealing ring (70), the second sealing ring (70) being disposed between the half-shaft sleeve (50) and the sealing cylinder (40), and being in contact with both the half-shaft sleeve (50) and the sealing cylinder (40); A first connecting member (80); The outer wall surface of the sealing cylinder (40) is provided with a first connecting hole (43), and the first connecting hole (43) is arranged between the first sealing ring (60) and the second sealing ring (70); the bridge housing (10) is provided with a second connecting hole (12), and the first connecting member (80) at least partially passes through the second connecting hole (12) to be connected to the first connecting hole (43).

9. The integrated bridge assembly (100) according to claim 1, characterized in that: The inner wall surface of the sealing cylinder (40) is provided with a mounting groove (44).

10. A vehicle, characterized in that: It comprises the integrated bridge assembly (100) as described in any one of claims 1 to 9.

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