CN209818574U - Universal cross shaft for vehicle drive axle half shaft assembly - Google Patents
Universal cross shaft for vehicle drive axle half shaft assembly Download PDFInfo
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- CN209818574U CN209818574U CN201920611701.7U CN201920611701U CN209818574U CN 209818574 U CN209818574 U CN 209818574U CN 201920611701 U CN201920611701 U CN 201920611701U CN 209818574 U CN209818574 U CN 209818574U
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Abstract
The utility model discloses a universal cross axle for a vehicle drive axle semi-axle assembly, which consists of a cross axle core and axle heads which extend from four directions of the cross axle core, are connected with bearings and have the same shape, namely, the bearing comprises a cross-shaped shaft core, four shaft heads and four bearings, each bearing comprises a bearing sleeve and an O-shaped sealing ring, a limiting table is arranged at the mounting port of each bearing sleeve along the circumferential direction, the O-shaped sealing rings are arranged on the limiting tables, the O-shaped sealing rings are arranged on the corresponding shaft heads together by each bearing sleeve, and can follow the axis rotation of spindle nose, the utility model discloses the bearing adopts bearing housing and O type sealing washer directly to replace traditional bearing and traditional sealing washer, can increase the external diameter of spindle nose after improving, lets the spindle nose external diameter thicker, and sealing performance is better to increase spindle nose intensity, can prolong cross life, reduce cost.
Description
Technical Field
The utility model belongs to the technical field of universal joint, concretely relates to universal cross axle for vehicle drive axle semi-axis assembly.
Background
The existing connecting assembly of the vehicle drive axle half shaft of various automobiles, engineering vehicles, loaders and special vehicles can meet the driving and direction turning angles during the running of the vehicles, the existing connecting assembly of the vehicle drive axle half shaft generally comprises a first half shaft, a second half shaft and a connecting piece for connecting the first half shaft with the second half shaft, the connecting piece is a cross axle universal joint, the axial end of the first half shaft connected with the second half shaft is taken as a connecting end, the connecting end of the first half shaft is provided with a first half shaft yoke, the first half shaft yoke is a U-shaped yoke, the U-shaped yoke is provided with a pair of oppositely arranged first half shaft yoke arms, the first half shaft yoke arm is provided with a first cross axle mounting hole, the connecting end of the second half shaft is provided with a second half shaft yoke, the second half shaft yoke is a U-shaped yoke, the U-shaped yoke is provided with a pair of oppositely arranged second half shaft yoke arms, the central connecting line of the two second half shaft yoke arms is vertical to the central connecting line of the two first half shaft yoke arms, second crossed shaft mounting holes are formed in the half shaft yoke arms, one pair of oppositely arranged connecting ends of the crossed shaft universal joint are correspondingly clamped into the two first crossed shaft mounting holes respectively and are mounted in the two first crossed shaft mounting holes through needle roller bearings respectively, and the other pair of oppositely arranged connecting ends of the crossed shaft universal joint are correspondingly clamped into the two second crossed shaft mounting holes respectively and are mounted in the second crossed shaft mounting holes through the needle roller bearings respectively. The vehicle drive axle half shaft with the structure can enable the two half shafts to rotate relatively through the cross shaft universal joint, and one half shaft can also rotate in a direction vertical to the rotation direction of the relative rotation of the two half shafts.
Wherein, the universal cross axle of connection assembly is very easily damaged: on one hand, the heavy load of the engineering vehicle and the impact load and the torque received during the operation are correspondingly large, and the sealing ring on the bearing sleeve is square, so that the lubricating oil in the bearing sleeve is easy to run out, and the maintenance is difficult; on the other hand, the two half shafts are subjected to frequent rotary motion and are subjected to frequent alternating impact loads during operation. Therefore, the shaft head of the universal cross shaft is easy to break and cause scrap.
The reasons for the above-mentioned breakage are: the universal cross shaft is a key part in a vehicle drive axle half shaft assembly, the shaft heads at four ends of the universal cross shaft are weak parts, and the fatigue fracture of the root part of the shaft neck of the universal cross shaft is a main failure mode of the universal cross shaft. The strength problem of the part to be solved has the following technical difficulties: due to the restriction of equipment space, the integral bearing capacity of the half shaft assembly of the vehicle drive axle cannot be improved by increasing the size of the universal cross shaft; therefore, the problem of easy breakage cannot be effectively solved, and in addition, the existing universal cross shaft is provided.
SUMMERY OF THE UTILITY MODEL
In order to overcome the above-mentioned weak point that exists among the prior art, the utility model aims to provide an universal cross axle for vehicle drive axle semi-axis assembly, this universal cross axle can reduce the spindle nose fracture of universal cross axle, improves spindle nose structural strength.
The utility model discloses a following technical scheme realizes: the utility model provides a universal cross axle for vehicle drive axle semi-axis assembly, by the cross axle core and from the cross axle core four directions extend with the bearing continuous, the spindle nose of unanimous shape is constituteed, promptly by the cross axle core, four spindle noses and four bearings are constituteed, every bearing includes bearing housing and O type sealing washer, be equipped with spacing platform along circumference at the installing port of every bearing housing, O type sealing washer is installed on spacing platform, every bearing housing installs O type sealing washer at the spindle nose that corresponds together, and can follow the axis rotation of spindle nose.
Preferably, be equipped with the oilhole of T-shaped in the cross axle core, every the bearing housing open along the axis have with the communicating through-hole of oilhole.
Preferably, the utility model discloses every all be equipped with one between the bottom of spindle nose and the cross axle core and be approximate coniform transition platform.
Preferably, both sides are asymmetric design around the cross axle core middle part also, and wherein one side middle part is the spill, is the convex in the middle of the opposite side.
Compared with the prior art, the utility model, following advantage and beneficial effect have:
1. the utility model discloses the bearing adopts bearing housing and O type sealing washer directly to replace traditional bearing and traditional sealing washer, can increase the external diameter of spindle nose after improving, lets the spindle nose external diameter thicker, and sealing performance is better to increase spindle nose intensity, can prolong cross life, reduce cost.
2. The utility model discloses be provided with a spacing platform on the bearing frame, the bearing frame compresses tightly O type sealing washer outside the spindle nose through spacing platform, can make O type sealing washer reach about and about the sealed effect, can guarantee that the lubricating oil in the bearing frame is difficult for running out to use the bearing need not maintain, reduce the maintenance cost.
Drawings
Other features, objects and advantages of the invention will become more apparent upon reading of the detailed description of non-limiting embodiments with reference to the following drawings:
fig. 1 is a schematic structural view of the present invention;
fig. 2 is an axial cross-sectional view of the present invention;
FIG. 3 is a structural diagram of the present invention installed on the axle shaft assembly of the vehicle drive axle;
wherein: 1-cross axle core, 2-spindle nose, 3-bearing housing, 4-O type sealing washer, 5-spacing platform, 6-oilhole, 7-through-hole, 8-transition platform, 9-first semi-axis, 10-second semi-axis, 11-connecting piece, 12-U type festival fork.
Detailed Description
Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the drawings are exemplary only for the purpose of explaining the present invention, and should not be construed as limiting the present invention.
In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like, indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are used merely for convenience of description and for simplicity of description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore, should not be construed as limiting the present invention. In the description of the present invention, "a plurality" means two or more unless otherwise specified.
In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.
The universal cross shaft for the vehicle drive axle half shaft assembly of the embodiment is composed of a cross shaft core 1 and shaft heads 2 which extend from four directions of the cross shaft core 1 and are connected with bearings and have the same shape, namely, the cross shaft core 1, the four shaft heads 2 and the four bearings are composed, each bearing comprises a bearing sleeve 3 and an O-shaped sealing ring 4, a limiting platform 5 is arranged at an installation port of each bearing sleeve 3 along the circumferential direction, the O-shaped sealing ring 4 is arranged on the limiting platform 5, the O-shaped sealing ring 4 is arranged on the corresponding shaft head 2 by each bearing sleeve 3 and can rotate along the axis of the shaft head 2, a T-shaped oil hole 6 is arranged in the cross shaft core 1, a through hole 7 communicated with the oil hole 6 is arranged on each bearing sleeve 3 along the axis, a transition platform 8 which is approximately conical is arranged between the bottom of each shaft head 2 and the cross shaft core 1, the transition table 8 can limit and extrude the O-shaped sealing ring 4, and the periphery of the O-shaped sealing ring is respectively extruded by two surfaces of the limit table 5, a shaft head contact surface and the transition table to form the effects of up-down sealing and left-right sealing; the front side and the rear side of the middle part of the cross-shaped shaft core 1 are also designed asymmetrically, wherein the middle part of one side is concave, and the middle part of the other side is convex.
The utility model discloses a theory of operation: the universal cross shaft of the utility model is arranged on a vehicle drive axle half shaft assembly, wherein the vehicle drive axle half shaft assembly comprises a first half shaft 9, a second half shaft 10, a connecting piece 11 for connecting the first half shaft 9 with the second half shaft 10 and a U-shaped joint fork 12, the connecting piece is a cross shaft universal joint, and the vehicle drive axle half shaft assembly belongs to the prior art, the utility model does not elaborate in detail, during the work, the vehicle drive axle half shaft with the structure can lead the two half shafts to rotate relatively through the cross shaft universal joint, and one half shaft can also carry out the rotary motion which is vertical to the rotary direction of the relative rotation of the two half shafts, because the bearing sleeve is static and does not rotate on the shaft head when the vehicle is straight, therefore, the friction between the bearing sleeve 3 and the shaft head 4 can not be generated to generate heat, when the vehicle turns, the bearing can rotate on the shaft head, when the vehicle normally turns, the speed of the vehicle is smaller, therefore, the friction between the bearing sleeve 3 and the shaft head 2 is smaller, the heat is not easy to generate, butter is also added in the bearing sleeve for lubrication, the bearing sleeve 3 can rotate more flexibly on the shaft head 2, thereby ensuring the normal use of the universal cross shaft, after the roller pin is cancelled on the bearing sleeve 3, the original radial size of the roller pin is occupied, the radial size of the shaft head is adopted for replacement, the external diameter of the shaft head can be further increased without changing the original size of the universal cross shaft, thereby increasing the strength of the shaft head, the shaft head is not easy to twist off in use, the service life of the cross shaft can be prolonged,
while embodiments of the present invention have been shown and described, it will be understood by those of ordinary skill in the art that: various changes, modifications, substitutions and alterations can be made to the embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the claims and their equivalents.
Claims (4)
1. The utility model provides a universal cross axle for vehicle drive axle semi-axis assembly, by the cross axle core and from the four directions of cross axle core extend with the bearing continuous, the consistent spindle nose of shape constitutes, comprises cross axle core, four spindle noses and four bearings promptly, its characterized in that: each bearing comprises a bearing sleeve and an O-shaped sealing ring, a limiting table is arranged at the mounting port of each bearing sleeve along the circumferential direction, the O-shaped sealing rings are mounted on the limiting tables, and the O-shaped sealing rings are mounted on the corresponding shaft heads of each bearing sleeve together and can rotate along the axes of the shaft heads.
2. The universal cross for a vehicle transaxle half shaft assembly of claim 1, wherein: a T-shaped oil hole is formed in the cross-shaped shaft core, and a through hole communicated with the oil hole is formed in each bearing sleeve along the axis.
3. The universal cross for a vehicle transaxle half shaft assembly of claim 1, wherein: and a transition table in an approximate conical shape is arranged between the bottom of each shaft head and the cross-shaped shaft core.
4. A universal cross for a vehicle transaxle half shaft assembly as defined in claim 1 or 3, wherein: the front side and the rear side of the middle part of the cross-shaped shaft core are also in asymmetric design, wherein the middle part of one side is concave, and the middle part of the other side is convex.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920611701.7U CN209818574U (en) | 2019-04-30 | 2019-04-30 | Universal cross shaft for vehicle drive axle half shaft assembly |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920611701.7U CN209818574U (en) | 2019-04-30 | 2019-04-30 | Universal cross shaft for vehicle drive axle half shaft assembly |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209818574U true CN209818574U (en) | 2019-12-20 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920611701.7U Active CN209818574U (en) | 2019-04-30 | 2019-04-30 | Universal cross shaft for vehicle drive axle half shaft assembly |
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| Country | Link |
|---|---|
| CN (1) | CN209818574U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109899407A (en) * | 2019-04-30 | 2019-06-18 | 晋江闽阳汽车部件制造有限公司 | A kind of articulated cross shaft for half axle assembly of vehicle drive axle |
-
2019
- 2019-04-30 CN CN201920611701.7U patent/CN209818574U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109899407A (en) * | 2019-04-30 | 2019-06-18 | 晋江闽阳汽车部件制造有限公司 | A kind of articulated cross shaft for half axle assembly of vehicle drive axle |
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