CN211501553U - Differential gear lubricating structure - Google Patents
Differential gear lubricating structure Download PDFInfo
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- CN211501553U CN211501553U CN201922491865.3U CN201922491865U CN211501553U CN 211501553 U CN211501553 U CN 211501553U CN 201922491865 U CN201922491865 U CN 201922491865U CN 211501553 U CN211501553 U CN 211501553U
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- differential
- gear
- lubricating oil
- differential mechanism
- planetary gear
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Abstract
The utility model belongs to the technical field of machinery, specifically disclose a differential mechanism gear lubrication structure, differential mechanism comprises differential mechanism planetary gear and differential mechanism half shaft gear, be provided with first lubrication groove on the differential mechanism planetary gear sphere, be provided with second lubrication groove on differential mechanism half shaft gear's the installation face. Aim at is according to differential mechanism's rotation characteristics for lubricating oil is along lubrication oil duct uniform flow, avoids the wearing and tearing sintering between differential mechanism gear and the gasket, prolongs the life of differential mechanism and gasket.
Description
Technical Field
The utility model relates to the technical field of machinery, concretely relates to differential mechanism gear lubricating structure.
Background
The differential planetary gear and the differential side gear are important parts forming the differential, and the structure of the differential planetary gear and the differential side gear belongs to a bevel gear. Because the internal gear of the automobile differential needs to work for a long time, a good lubricating environment is needed, and the effective, long-term and stable operation of the internal gear of the differential is ensured.
At present, based on the research of differential lubrication, the research on lubrication between a differential gear and a shaft and between the differential gear and a shaft is mostly concentrated, the research on lubrication between the differential gear and a corresponding gasket is less, and due to long-term friction contact between the differential gear and the gasket, the temperature is too high, so that abrasion sintering is generated, regular maintenance is needed, and the abraded gasket and the gear are replaced.
Disclosure of Invention
In order to solve the problem, the utility model provides a differential mechanism gear lubricating structure.
In order to achieve the above object, the utility model adopts the following technical scheme: the differential mechanism is composed of a differential mechanism planet gear and a differential mechanism half shaft gear, a first lubricating oil groove is formed in the spherical surface of the differential mechanism planet gear, and a second lubricating oil groove is formed in the mounting surface of the differential mechanism half shaft gear.
Preferably, first lubrication groove is the strip, first lubrication groove link up the setting from differential planetary gear's spherical surface edge to the hole, the axis of first lubrication groove has certain contained angle with differential planetary gear's central line.
Preferably, the number of the first lubricating oil grooves is three and is uniformly arranged along the circumferential direction.
Preferably, the second lubricating oil groove 4 is an arc, the center of the arc is eccentric to the center of the gear, and two ends of the second lubricating oil groove 4 penetrate through the edge of the mounting plane of the differential side gear 3.
Preferably, the second oil groove is symmetrically arranged in two.
Preferably, the second lubricating oil groove in the differential side gear is formed by uniformly installing and machining clamp bodies.
Preferably, 2N differential side gears are fixedly mounted on the clamp body at the same time, wherein N is more than or equal to 1 and is an integer, and the 2N differential side gears are symmetrically arranged.
Preferably, the inner hole of the differential planetary gear is provided with a spiral lubricating oil groove, and the length of the spiral lubricating oil groove is consistent with that of the inner hole of the differential planetary gear.
The utility model discloses an useful part lies in: through setting up the lubrication oil groove on the sphere of differential mechanism planetary gear to and differential mechanism side gear's the installation face, can be at the in-process of differential mechanism work, the lubrication oil can be lubricated according to its rotation characteristics even flow in the lubrication oil groove, avoid differential mechanism planetary gear sphere and differential mechanism planetary gear sphere gasket to and the premature wear and produce the wearing and tearing sintering between differential mechanism side gear mounting plane and the differential mechanism side gear plane gasket, thereby prolong the life of differential mechanism gear and gasket.
Drawings
FIG. 1 is a schematic structural diagram of a lubricating oil passage of a planetary gear of a differential;
FIG. 2 is a schematic structural view of a lubrication oil passage of a side gear of the differential;
FIG. 3 is a schematic view of a clamp body for mounting a differential side gear;
FIG. 4 is a schematic structural diagram of a spiral lubricating oil passage in an inner hole of a planetary gear of a differential.
In the figure: 1-differential planetary gear; 2-a first lubricating oil groove; 3-differential side gear; 4-a second lubricating oil groove; 5-a pressing rod; 6-a nut; 7-a gasket; 8-a clamp body; 9-spiral lubricating oil groove.
Detailed Description
The utility model belongs to the technical field of machinery, concretely relates to differential mechanism gear lubricating structure utilizes this lubricating structure, can effectively prevent the sintering of wearing and tearing between differential mechanism gear and the gasket.
The differential mechanism is formed by meshing a set of differential mechanism planetary gear 1 and a set of differential mechanism side gear 3, be provided with first lubrication groove 2 on the differential mechanism planetary gear 1 sphere, be provided with second lubrication groove 4 on differential mechanism side gear 3's the installation face. Through first lubrication oil groove 2, and second lubrication oil groove 4, can increase the lubrication between gear and the gasket, delay the wearing and tearing of differential gear and gasket, prolong the life of differential gear and gasket.
As shown in fig. 1, first lubrication oil groove 2 is strip-shaped and has a certain depth, first lubrication oil groove 2 is arranged from the spherical edge of differential planetary gear 1 to the inner hole in a penetrating manner, and the axis of first lubrication oil groove 2 and the center line of differential planetary gear 1 have a certain included angle. It can be understood that the axis of the first lubricating oil groove 2 and the central line of the differential planetary gear 1 have a certain included angle, the included angle is 0-90 degrees, the depth of the first lubricating oil groove 2 can enable lubricating oil to flow sufficiently in the oil groove, and the spherical surface of the differential planetary gear 1 and the spherical gasket of the differential planetary gear can be effectively lubricated when rotating relatively.
The utility model discloses in, first lubrication groove 2 is preferred to be set up to three. And the number of the channels can be increased or decreased according to the actual use requirement.
As shown in fig. 2, the second lubrication groove 4 on the mounting face of the differential side gear 3 (i.e., the face where the differential side gear 3 contacts the flat spacer) is arc-shaped with its center being offset from the gear center by a certain distance, and both ends of the second lubrication groove 4 penetrate the gear edge of the differential side gear 3. The utility model discloses in, second lubrication groove 4 is preferred the symmetry to set up two, and two circular-arc second lubrication grooves 4 set up with gear central symmetry, and in differential mechanism side gear 3's motion, lubricating oil can flow along second lubrication groove 4 to realize lubricated purpose, the degree of depth of oil groove can obtain effective lubricated degree of depth for can making differential mechanism side gear 3 installation face and plane gasket.
As shown in fig. 3, the installation schematic diagram is that the second lubricating oil grooves 4 on the differential side gear 3 are processed in a unified manner, the second lubricating oil grooves 4 on the differential side gear 3 are formed by installing and processing the clamp bodies 8 in a unified manner, 2N differential side gears 3 are fixedly installed on the clamp bodies 8 at the same time, wherein N is greater than or equal to 1 and is an integer, and the 2N differential side gears 3 are symmetrically arranged. The machining of the second lubricating-oil grooves 4 of the upper half of the 2N differential side gears 3 can be completed in the case of one-time turning.
In fig. 3, it is preferable to simultaneously machine 4 differential side gears 3 in an integral multiple of 2 in order to achieve dynamic balance and prevent vibrations during machining. The pressing rod 5 and the clamp body 8 are connected into a whole in a threaded mode and the like, during installation, the tooth shapes of the differential half-shaft gear 3 are firstly placed on the tooth-shaped positioning surface on the clamp body 8 one by one, then the gasket 7 is placed on the end surface of the differential half-shaft gear 3, and then the nut 6 is screwed to press the differential half-shaft gear 3. During machining, the lathe drives the clamp body 8 to rotate, and the machining of the first half second lubricating oil grooves 4 of the 4 differential side gears 3 can be completed simultaneously through turning at one time. The distance from the maximum edge position of the turned oil groove to the center of the gear is larger than the excircle radius of the shaft neck of the half axle gear 3.
As shown in fig. 4, the inner bore of the differential planetary gear 1 is provided with a spiral lubricating oil groove 9, and the length of the spiral lubricating oil groove 9 is consistent with that of the inner bore of the differential planetary gear 1. The spiral oil ducts with certain pitch P, certain depth and certain width are distributed in the inner hole of the differential planetary gear, so that lubricating oil can enter the inner hole along the spiral oil ducts, the lubrication of the inner hole and the shaft of the differential planetary gear is increased, the abrasion of the inner hole and the shaft of the differential planetary gear is reduced, the abrasion sintering of the inner hole and the shaft of the differential planetary gear is effectively prevented, and the service life of the differential planetary gear and the shaft is prolonged.
The above embodiments are preferred embodiments, it should be noted that the above preferred embodiments should not be considered as limitations of the present invention, and the scope of the present invention should be limited by the scope defined by the claims. It will be apparent to those skilled in the art that various modifications and enhancements can be made without departing from the spirit and scope of the invention, and such modifications and enhancements are intended to be within the scope of the invention.
Claims (7)
1. The utility model provides a differential gear lubrication structure, differential mechanism comprises differential mechanism planetary gear (1) and differential mechanism side gear (3), its characterized in that: a first lubricating oil groove (2) is formed in the spherical surface of the differential planetary gear (1), and a second lubricating oil groove (4) is formed in the mounting surface of the differential side gear (3); first lubrication groove (2) are the strip, first lubrication groove (2) link up the setting from the spherical surface edge of differential mechanism planetary gear (1) to the hole, the axis of first lubrication groove (2) has certain contained angle with the central line of differential mechanism planetary gear (1).
2. A differential gear lubricating structure according to claim 1, characterized in that: the number of the first lubricating oil grooves (2) is three along the circumferential direction.
3. A differential gear lubricating structure according to claim 1, characterized in that: the second lubricating oil groove (4) is an arc, the circle center of the arc is eccentric to the center of the gear, and two ends of the second lubricating oil groove (4) penetrate through the edge of the mounting plane of the differential mechanism half shaft gear (3).
4. A differential gear lubricating structure according to claim 3, characterized in that: the two second lubricating oil grooves (4) are symmetrically arranged.
5. A differential gear lubricating structure according to claim 3, characterized in that: and a second lubricating oil groove (4) on the differential side gear (3) is formed by uniformly installing and processing a clamp body (8).
6. A differential gear lubricating structure according to claim 5, characterized in that: 2N differential half-shaft gears (3) are fixedly mounted on the clamp body (8) at the same time, wherein N is larger than or equal to 1 and is an integer, and the 2N differential half-shaft gears (3) are symmetrically arranged.
7. A differential gear lubricating structure according to claim 1, characterized in that: the inner hole of the differential planetary gear (1) is provided with a spiral lubricating oil groove (9), and the length of the spiral lubricating oil groove (9) is consistent with that of the inner hole of the differential planetary gear (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922491865.3U CN211501553U (en) | 2019-12-31 | 2019-12-31 | Differential gear lubricating structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922491865.3U CN211501553U (en) | 2019-12-31 | 2019-12-31 | Differential gear lubricating structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN211501553U true CN211501553U (en) | 2020-09-15 |
Family
ID=72397907
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201922491865.3U Active CN211501553U (en) | 2019-12-31 | 2019-12-31 | Differential gear lubricating structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN211501553U (en) |
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2019
- 2019-12-31 CN CN201922491865.3U patent/CN211501553U/en active Active
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