CN220081982U - Dust cover structure of constant velocity universal joint of motor vehicle - Google Patents
Dust cover structure of constant velocity universal joint of motor vehicle Download PDFInfo
- Publication number
- CN220081982U CN220081982U CN202320804043.XU CN202320804043U CN220081982U CN 220081982 U CN220081982 U CN 220081982U CN 202320804043 U CN202320804043 U CN 202320804043U CN 220081982 U CN220081982 U CN 220081982U
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- Prior art keywords
- dust cover
- constant velocity
- universal joint
- velocity universal
- motor vehicle
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- 239000000428 dust Substances 0.000 title claims abstract description 77
- 230000000903 blocking effect Effects 0.000 claims description 59
- 238000007789 sealing Methods 0.000 claims description 33
- 239000004519 grease Substances 0.000 abstract description 24
- 238000000034 method Methods 0.000 abstract description 11
- 238000005461 lubrication Methods 0.000 abstract description 8
- 230000002035 prolonged effect Effects 0.000 abstract description 6
- 230000001050 lubricating effect Effects 0.000 description 8
- 239000010687 lubricating oil Substances 0.000 description 3
- 239000002699 waste material Substances 0.000 description 3
- 230000007547 defect Effects 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 150000003839 salts Chemical class 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Landscapes
- Sealing Devices (AREA)
Abstract
The utility model belongs to a dust cover structure of a constant velocity universal joint of a motor vehicle, belonging to the technical field of constant velocity universal joints of motor vehicles. Including dust cover body (1), dust cover body (1) includes body big end (2) and body tip (3), and body big end (2) inner wall sets up blocks blade (4), blocks blade (4) and sets up along body big end (2) inner wall a week protrusion, and body big end (2) include a plurality of lug (5) and a plurality of concave part (6) that block, set up an opening (7) of concave part on every lug (5) respectively. According to the dust cover structure of the constant-velocity universal joint of the motor vehicle, grease can be effectively prevented from entering the dust cover from the constant-velocity universal joint in the axial movement process of the constant-velocity universal joint, and the grease can be returned to the universal joint during the reverse axial movement, so that the consumption of the grease of the constant-velocity universal joint is ensured not to be reduced rapidly, the reliable lubrication of the universal joint is ensured, and the service life is prolonged.
Description
Technical Field
The utility model belongs to the technical field of constant velocity universal joints of motor vehicles, and particularly relates to a dust cover structure of a constant velocity universal joint of a motor vehicle.
Background
The movable end constant velocity universal joint is used for an automobile chassis transmission system and is used for transmitting power and torque between rotating shafts with included angles and positions which are changed frequently. In order to make the constant velocity universal joint of the movable end normally use, a certain amount of lubricating grease must be injected into the inner cavity of the ball channel of the universal joint, so that the constant velocity universal joint of the movable end needs to be sealed, the lubricating grease is prevented from leaking, meanwhile, dust, water, salt and the like are prevented from entering the inner cavity of the ball channel to influence lubrication, and a dust cover is used at the moment.
The existing dust cover of the constant velocity universal joint of the movable end is characterized in that the large end of the dust cover is matched with a sealing groove of a three-column groove shell of the universal joint, the dust cover is clamped by a large clamping hoop, the small end of the dust cover is matched with a sealing groove of an intermediate shaft, and the dust cover is clamped by a small clamping hoop, so that the constant velocity universal joint of the movable end is sealed. The movable end constant velocity universal joint not only rotates and swings, but also axially moves in the normal use process. In the axial movement process, the grease can move into the dust cover along with the rotation and axial movement of the constant velocity universal joint, and the grease enters the dust cover to cause grease leakage, so that the grease in the constant velocity universal joint is reduced, the lubrication effect of the constant velocity universal joint is reduced, and the service life of the constant velocity universal joint is influenced.
In the prior art, there is a technology named as an improved structure of a constant velocity universal joint dust cover and disclosed as 201786964U, the technology comprises a large-diameter fixing part fixed on a bell housing, a small-diameter fixing part fixed on an intermediate shaft and a corrugated pipe integrally connected between the large-diameter fixing part and the small-diameter fixing part, the corrugated pipe sequentially comprises a first peak part, a first valley part, a second peak part, a second valley part, a third peak part, a third valley part and a fourth peak part from the large-diameter fixing part to the small-diameter fixing part, and in the section of the corrugated pipe, the inner walls of the first peak part, the second peak part and the third peak part and the outer wall of the fourth peak part are positioned on a straight line, and the inner diameters of the first valley part, the second valley part and the third valley part are sequentially reduced.
However, this technique does not relate to the technical problem and technical solution of the present utility model.
Disclosure of Invention
The technical problems to be solved by the utility model are as follows: aiming at the defects of the prior art, the motor vehicle constant velocity universal joint dust cover structure has the advantages that the structure is simple, grease can be effectively prevented from entering the dust cover from the constant velocity universal joint in the axial moving process of the constant velocity universal joint, and the grease can be returned to the universal joint when in reverse axial movement, so that the grease consumption of the constant velocity universal joint is ensured not to be reduced rapidly, the reliable lubrication of the universal joint is ensured, and the service life is prolonged.
The technical scheme adopted by the utility model is as follows:
the utility model relates to a dust cover structure of a constant velocity universal joint of a motor vehicle, which comprises a dust cover body, wherein the dust cover body comprises a body large end and a body small end, blocking blades are arranged on the inner wall of the body large end, the blocking blades are arranged in a protruding mode along the periphery of the inner wall of the body large end, the body large end comprises a plurality of blocking protruding pieces and a plurality of concave portions, and each blocking protruding piece is provided with a concave opening.
The blocking blade and the inner wall of the large end of the body are of an integrated structure.
The blocking vane includes three blocking tabs and three recesses.
Each recess of the blocking vane is located between two blocking tabs.
The body large end inner wall set up the outside position that blocks the blade and still set up the large end sealing portion, the large end sealing portion is the sealed boss of the large end that many edges body large end inner wall a week protrusion arranged and the sealed recess of large end that many recesses arranged.
The inner wall of the small end of the body is provided with a plurality of small end sealing bosses which are arranged in a protruding mode and a plurality of small end sealing grooves which are arranged in a recessed mode along a circle of the inner wall of the small end of the body.
The body big end of the dust cover body is matched with the sealing groove of the body big end connecting part of the constant velocity universal joint, and the body big end is clamped with the sealing groove of the body big end connecting part of the constant velocity universal joint by a big clamp.
The body small end of the dust cover body is matched with the sealing groove of the body small end connecting part of the constant velocity universal joint, and the body small end is clamped with the sealing groove of the body small end connecting part of the constant velocity universal joint by a small clamp.
The dust cover is characterized in that the large end and the small end of the dust cover body are provided with fold parts, and the fold parts are of structures with diameter sizes gradually reduced from one end of the large end of the body to one end of the small end of the body.
When the dust cover body is installed, the protruding part of the constant velocity universal joint is arranged to be capable of passing through the recessed part of the blocking blade of the dust cover body.
By adopting the technical scheme of the utility model, the working principle and the beneficial effects are as follows:
according to the dust cover structure of the constant velocity universal joint of the motor vehicle, the blocking blades are arranged on the inner wall of the large end of the body and are arranged in a protruding mode along the periphery of the inner wall of the large end of the body. Thus, in the axial movement process of the universal joint, the blocking blades can effectively block the grease from entering the dust cover from the moving constant-speed universal joint housing. When the universal joint moves reversely and axially, the lubricating oil blocked by the blocking blades can return to the universal joint under the action of axial inertia and participate in lubrication again, so that the amount of lubricating grease in the constant velocity universal joint is maintained, the service life of the constant velocity universal joint is prolonged, the waste of the lubricating grease is reduced, and the cost is saved. And the body large end includes a plurality of blocking tabs and a plurality of concave parts, sets up a recessed opening on each blocking tab respectively, and when the dust cover body is installed, the convex part of constant velocity universal joint can the concave part of the blocking blade of dust cover body pass through. And because the whole cross-section size of cardan shaft is greater than the trompil in the middle of blocking the blade, consequently when the dust cover is installed, the cardan joint can act on blocking the blade when blocking the trompil in the middle of the blade for block the lug deformation, thereby ensure that the cardan joint passes through smoothly, satisfy the assembly requirement.
Drawings
The following is a brief description of what is expressed in the drawings of this specification and the references in the drawings:
FIG. 1 is a schematic cross-sectional view of a boot structure for a constant velocity joint of an automotive vehicle according to the present utility model;
FIG. 2 is a schematic cross-sectional view of the face B-B of the boot structure of the constant velocity joint of the motor vehicle illustrated in FIG. 1;
FIG. 3 is a schematic view of an isometric view of a boot configuration for a constant velocity joint of an automotive vehicle according to the present utility model;
the reference numerals in the figures are respectively: 1. a dust cover body; 2. the large end of the body; 3. a small end of the body; 4. blocking the blade; 5. a blocking tab; 6. a recessed portion; 7. an opening; 8. a fold portion; 9. a large end sealing boss; 10. a large end sealing groove; 11. a small end sealing boss; 12. the small end seals the groove.
Detailed Description
The following describes the shape, structure, mutual position and connection relation between parts, action of parts and working principle of the specific embodiment of the present utility model by describing examples in further detail:
as shown in fig. 1-3, the utility model relates to a dust cover structure of a constant velocity universal joint of a motor vehicle, which comprises a dust cover body 1, wherein the dust cover body 1 comprises a main body big end 2 and a main body small end 3, blocking blades 4 are arranged on the inner wall of the main body big end 2, the blocking blades 4 are arranged in a protruding mode along the periphery of the inner wall of the main body big end 2, the main body big end 2 comprises a plurality of blocking lugs 5 and a plurality of concave parts 6, and each blocking lug 5 is provided with a concave opening 7. The structure provides an improved technical scheme aiming at the defects in the prior art. The inner wall of the main body large end 2 is provided with a blocking blade 4, and the blocking blade 4 is arranged along the periphery of the inner wall of the main body large end 2 in a protruding way. Thus, in the axial movement process of the universal joint, the blocking blades can effectively block the grease from entering the dust cover from the moving constant-speed universal joint housing. When the universal joint moves reversely and axially, the lubricating oil blocked by the blocking blades can return to the universal joint under the action of axial inertia and participate in lubrication again, so that the amount of lubricating grease in the constant velocity universal joint is maintained, the service life of the constant velocity universal joint is prolonged, and the waste of the lubricating grease is reduced. While the body large end 2 comprises a plurality of blocking tabs 5 and a plurality of concave portions 6, each blocking tab 5 is provided with a concave opening 7, and when the dust cover body 1 is installed, the convex portion of the constant velocity universal joint can pass through the concave portions 6 of the blocking blades 4 of the dust cover body 1. And because the whole cross-section size of cardan shaft is greater than the trompil in the middle of blocking blade 4, consequently when the dust cover is installed, the cardan joint can act on blocking the blade when blocking the trompil in the middle of the blade for block the lug deformation, thereby ensure that the cardan joint passes through smoothly, satisfy the assembly requirement. According to the dust cover structure of the constant-velocity universal joint of the motor vehicle, grease can be effectively prevented from entering the dust cover from the constant-velocity universal joint in the axial movement process of the constant-velocity universal joint, and the grease can be returned to the universal joint during the reverse axial movement, so that the consumption of the grease of the constant-velocity universal joint is ensured not to be reduced rapidly, the reliable lubrication of the universal joint is ensured, and the service life is prolonged.
The blocking blade 4 and the inner wall of the main body large end 2 are of an integrated structure. Above-mentioned structure, when the dust cover was made, stop blade and dust cover body integrated into one piece, simple process, with low costs.
The blocking vane 4 comprises three blocking tabs 5 and three recesses 6. Each recess 6 of the blocking vane 4 is located between two blocking tabs 5. The above-described structure, the structure of the three blocking tabs 5 and the three recesses 6, is set corresponding to the structure of the constant velocity joint. Because of the structure of the constant velocity joint, there are three outwardly protruding portions in the cross section, and therefore, each protruding portion passes through corresponding to one recessed portion when mounting is performed, facilitating smooth assembly.
The inner wall of the main body large end 2 is provided with a large end sealing part at the outer side of the blocking blade 4, and the large end sealing part is provided with a plurality of large end sealing bosses 9 protruding along the periphery of the inner wall of the main body large end 2 and a plurality of large end sealing grooves 10 recessed. The main body big end 2 of the dust cover main body 1 is matched with a sealing groove of a main body big end connecting part of the constant velocity universal joint, and the main body big end 2 is tightly clamped with the sealing groove of the main body big end connecting part of the constant velocity universal joint by a big clamp. Above-mentioned structure, convenient and reliable realization body large end's connection, and through the setting of large end seal boss 9 and large end seal groove 10, this position warp when the clamp chucking to effectively improve the leakproofness.
The inner wall of the small end 3 of the body is provided with a plurality of small end sealing bosses 11 which are arranged in a protruding way and a plurality of small end sealing grooves 12 which are arranged in a recessed way along the circumference of the inner wall of the small end 3 of the body. The small end 3 of the dust cover body 1 is matched with the sealing groove of the small end connecting part of the constant velocity universal joint, and the small clamp is used for clamping the small end 3 of the dust cover body and the sealing groove of the small end connecting part of the constant velocity universal joint. Above-mentioned structure, convenient and reliable realization body tip's connection, and through the setting of tip seal boss and tip seal groove, this position warp when the clamp chucking to effectively improve the leakproofness.
The dust cover is characterized in that the main body big end 2 and the main body small end 3 of the dust cover main body 1 are provided with the fold parts 8, and the fold parts 8 are of structures with gradually reduced diameter sizes from one end of the main body big end 2 to one end of the main body small end 3. When the dust cover body 1 is required to be mounted, the protruding part of the constant velocity universal joint is configured to pass through the recessed part 6 of the blocking blade 4 of the dust cover body 1.
According to the dust cover structure of the constant velocity universal joint of the motor vehicle, the blocking blades are arranged on the inner wall of the large end of the body and are arranged in a protruding mode along the periphery of the inner wall of the large end of the body. Thus, in the axial movement process of the universal joint, the blocking blades can effectively block the grease from entering the dust cover from the moving constant-speed universal joint housing. When the universal joint moves reversely and axially, the lubricating oil blocked by the blocking blades can return to the universal joint under the action of axial inertia and participate in lubrication again, so that the amount of lubricating grease in the constant velocity universal joint is maintained, the service life of the constant velocity universal joint is prolonged, the waste of the lubricating grease is reduced, and the cost is saved. And the body large end includes a plurality of blocking tabs and a plurality of concave parts, sets up a recessed opening on each blocking tab respectively, and when the dust cover body is installed, the convex part of constant velocity universal joint can the concave part of the blocking blade of dust cover body pass through. And because the whole cross-section size of cardan shaft is greater than the trompil in the middle of blocking the blade, consequently when the dust cover is installed, the cardan joint can act on blocking the blade when blocking the trompil in the middle of the blade for block the lug deformation, thereby ensure that the cardan joint passes through smoothly, satisfy the assembly requirement.
While the utility model has been described above with reference to the accompanying drawings, it will be apparent that the specific implementation of the utility model is not limited by the foregoing, but rather is within the scope of the utility model as long as various modifications are made by the method concept and technical scheme of the utility model, or the concept and technical scheme of the utility model are directly applied to other occasions without modification.
Claims (10)
1. A dust cover structure of a constant velocity universal joint of a motor vehicle, which is characterized in that: including dust cover body (1), dust cover body (1) includes body big end (2) and body tip (3), and body big end (2) inner wall sets up blocks blade (4), blocks blade (4) and sets up along body big end (2) inner wall a week protrusion, and body big end (2) include a plurality of lug (5) and a plurality of concave part (6) that block, set up an opening (7) of concave part on every lug (5) respectively.
2. A motor vehicle constant velocity joint dust boot structure according to claim 1, wherein: the blocking blade (4) and the inner wall of the main body big end (2) are of an integrated structure.
3. A motor vehicle constant velocity joint dust cover structure according to claim 1 or 2, characterized in that: the blocking vane (4) comprises three blocking tabs (5) and three recesses (6).
4. A motor vehicle constant velocity joint dust boot structure according to claim 3, wherein: each recess (6) of the blocking vane (4) is located between two blocking tabs (5).
5. A motor vehicle constant velocity joint dust cover structure according to claim 1 or 2, characterized in that: the inner wall of the large end (2) of the body is provided with a large end sealing part at the outer side of the blocking blade (4), and the large end sealing part is provided with a plurality of large end sealing bosses (9) protruding along the periphery of the inner wall of the large end (2) of the body and a plurality of large end sealing grooves (10) recessed.
6. A motor vehicle constant velocity joint dust cover structure according to claim 1 or 2, characterized in that: the inner wall of the small end (3) of the body is provided with a plurality of small end sealing bosses (11) which are arranged in a protruding way and a plurality of small end sealing grooves (12) which are arranged in a recessed way along the circumference of the inner wall of the small end (3) of the body.
7. A motor vehicle constant velocity joint dust cover structure according to claim 1 or 2, characterized in that: the main body big end (2) of the dust cover main body (1) is matched with the sealing groove of the main body big end connecting part of the constant velocity universal joint, and the sealing groove of the main body big end (2) and the main body big end connecting part of the constant velocity universal joint is clamped by a big clamp.
8. A motor vehicle constant velocity joint dust cover structure according to claim 1 or 2, characterized in that: the small end (3) of the dust cover body (1) is matched with the sealing groove of the small end connecting part of the constant velocity universal joint, and the small clamp is used for clamping the small end (3) of the dust cover body and the sealing groove of the small end connecting part of the constant velocity universal joint.
9. A motor vehicle constant velocity joint dust cover structure according to claim 1 or 2, characterized in that: the dust cover is characterized in that the large end (2) and the small end (3) of the dust cover body (1) are provided with the fold parts (8), and the fold parts (8) are of structures with diameter sizes gradually reduced from one end of the large end (2) to one end of the small end (3).
10. A motor vehicle constant velocity joint dust cover structure according to claim 1 or 2, characterized in that: when the dust cover body (1) is installed, the protruding part of the constant velocity universal joint is arranged to be capable of passing through the concave part (6) of the blocking blade (4) of the dust cover body (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320804043.XU CN220081982U (en) | 2023-04-12 | 2023-04-12 | Dust cover structure of constant velocity universal joint of motor vehicle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320804043.XU CN220081982U (en) | 2023-04-12 | 2023-04-12 | Dust cover structure of constant velocity universal joint of motor vehicle |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220081982U true CN220081982U (en) | 2023-11-24 |
Family
ID=88813964
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202320804043.XU Active CN220081982U (en) | 2023-04-12 | 2023-04-12 | Dust cover structure of constant velocity universal joint of motor vehicle |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220081982U (en) |
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2023
- 2023-04-12 CN CN202320804043.XU patent/CN220081982U/en active Active
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