CN208503400U - Precision forging duplicate gear - Google Patents
Precision forging duplicate gear Download PDFInfo
- Publication number
- CN208503400U CN208503400U CN201820776943.7U CN201820776943U CN208503400U CN 208503400 U CN208503400 U CN 208503400U CN 201820776943 U CN201820776943 U CN 201820776943U CN 208503400 U CN208503400 U CN 208503400U
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- CN
- China
- Prior art keywords
- gear
- duplicate gear
- oilhole
- ontology
- duplicate
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
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Abstract
The utility model discloses a kind of precision forging duplicate gears comprising by first gear, second gear and its between gear shaft three coaxial combination at duplicate gear ontology, the duplicate gear ontology in axial direction integrated enclosed forging and forming；The circumferentially arranged endless oil groove having in closed state of gear shaft appearance, and has on the gear shaft and run through oilhole, the both ends port for running through oilhole is on the endless oil groove, and should be connected through oilhole with the axially extending bore of the duplicate gear ontology.The utility model dense internal organization, comprehensive mechanical performance is good, material anisotropy and the performance difference at each position of product are relatively small, be conducive to going on smoothly for the processes such as the subsequent heat treatment of product and machining, and then be conducive to play the comprehensive mechanical performance of material, improve the service life of gear.
Description
Technical field
The utility model relates to a kind of precision forging duplicate gears, belong to gear technique field.
Background technique
Duplicate gear is widely used in automobile gearbox or other machinery speed change gear, and as its name suggests, duplicate gear is
Two coaxial and separated by a distance gears are made of one, and are generally same modulus, its effect is exactly to change output shaft
Revolving speed or speed.
The duplicate gear crinosity base of early stage generally uses axial split die forging mode, although simple process, due to depositing
In the overlap that needs are cut off, material consumption is larger, and material flows complex, the different parts tissue and mechanical performance of product
It differs larger, is easy to cause biggish machining deformation and heat-treatment distortion.
Summary of the invention
Place, the utility model are intended to provide a kind of precision forging duplicate gear in view of the deficiency of the prior art,
Its dense internal organization, comprehensive mechanical performance is good, and the performance difference at material anisotropy and each position of product is relatively small, has
Conducive to going on smoothly for the processes such as the subsequent heat treatment of product and machining, and then be conducive to play the comprehensive mechanical of material
Can, improve the service life of gear.
To achieve the goals above, the technical solution of the utility model includes: a kind of precision forging duplicate gear comprising by
One gear, second gear and its between gear shaft three coaxial combination at duplicate gear ontology, the duplicate gear ontology
In axial direction integrated enclosed forging and forming；The circumferentially arranged endless oil groove having in closed state of gear shaft appearance, and
Have on the gear shaft and run through oilhole, should be on the endless oil groove through the both ends port of oilhole, and should be through oil
Hole is connected with the axially extending bore of the duplicate gear ontology.
Further, the duplicate gear ontology both ends of the surface protrude from the first gear, second gear outer end face, and in
It is all had in the duplicate gear ontology both ends of the surface through oil groove, it should be through the axially extending bore phase of oil groove and the duplicate gear ontology
Connection.
Further, the oilhole that runs through is clear opening, and is somebody's turn to do the central axis through oilhole and the duplicate gear sheet
The central axis upright of body intersects.
Further, be respectively provided with two in the duplicate gear ontology both ends of the surface described in through oil groove, and described in two
The central axis two sides of axially extending bore through oil groove point in the duplicate gear.
Further, the section semicircular in shape of the endless oil groove, and its semicircle diameter runs through oilhole less than described in
Bore dia size.
The utility model has the beneficial effects that duplicate gear ontology passes through axial enclosed forging and forming, have material consumption small,
Machining allowance is small, and the dense structure of gear internal, comprehensive mechanical performance is good, the performance at material anisotropy and each position of product
The advantages that difference is relatively small.The good interior tissue of product advantageously ensures that the works such as the subsequent heat treatment of product and machining
Sequence is gone on smoothly, and then is conducive to play the comprehensive mechanical performance of material, improves the service life of gear；Pass through oil groove, oil
The setting of the different conditions such as hole, ensure that gear obtains sufficient lubrication in use, also further improves entire gear
Service life.
Detailed description of the invention
Fig. 1 is the three-dimensional structure diagram of the utility model.
Specific embodiment
Combined with specific embodiments below and attached drawing is further described the utility model.
A kind of precision forging duplicate gear as described in Figure 1 comprising by first gear 1, second gear 2 and its between tooth
3 three's coaxial combination of wheel shaft at duplicate gear ontology, wherein in axial direction integrated enclosed forges into duplicate gear ontology
Type；The circumferentially arranged endless oil groove 6 having in closed state of 3 appearance of gear shaft, and have on the gear shaft 3 and run through oilhole 5,
The both ends port for running through oilhole 5 is on endless oil groove 6, and should be through the axially extending bore of oilhole 5 and duplicate gear ontology
It is connected.
Here, duplicate gear uses closed type forged dabbing base, and material is flowed in a manner of axial symmetry in forging process, in product
Dense structure of portion, comprehensive mechanical performance improve, and the anisotropy of material is relatively small.Therefore product is in subsequent heat treatment and essence
Deformation when close processing is smaller, ensure that the machining accuracy of gear, promotes gear drive effect.
Specifically, 3 three in one of first gear 1, second gear 2 and gear shaft guarantees the whole of entire duplicate gear ontology
Body, and make duplicate gear ontology both ends of the surface protrude from first gear 1,2 outer end face of second gear, and in the duplicate gear sheet
It is all had in body both ends of the surface through oil groove 4, should be connected through oil groove 4 with the axially extending bore of duplicate gear ontology.It, should in this example
Two are respectively provided in duplicate gear ontology both ends of the surface through oil groove 4, and two are divided the axial direction in duplicate gear through oil groove 4
The central axis two sides of through-hole.
There is endless oil groove 6 on gear shaft 3, run through oilhole 5, quantity is at least one, it is of course possible to according to the actual situation,
To on gear shaft 3 endless oil groove 6, be specifically laid out through oilhole 5, be clear opening through oilhole 5, and this is passed through in this example
The central axis for wearing oilhole 5 intersects with the central axis upright of duplicate gear ontology；It can also should be non-rectilinear oil through oilhole 5
Road, whole purpose are so that gear drive obtains sufficient lubrication.Here, the section semicircular in shape of endless oil groove 6, and it is partly
Round diameter is less than the bore dia size through oilhole 5.
Technical solution provided by the utility model embodiment is described in detail above, it is used herein specifically
A example is expounded the principle and embodiment of the utility model embodiment, and the explanation of above embodiments is only applicable to help
Assistant solves the principle of the utility model embodiment；At the same time, for those skilled in the art is implemented according to the utility model
Example, there will be changes in terms of specific embodiments and scope of application, in conclusion the content of the present specification should not be construed as
Limitations of the present invention.
Claims (5)
1. a kind of precision forging duplicate gear, including by first gear (1), second gear (2) and its between gear shaft (3) three
Person's coaxial combination at duplicate gear ontology, it is characterised in that: the duplicate gear ontology in axial direction integrated enclosed forging and stamping
Molding；The circumferentially arranged endless oil groove (6) having in closed state of gear shaft (3) appearance, and have on the gear shaft (3)
Have through oilhole (5), should be on the endless oil groove (6) through the both ends port of oilhole (5), and oilhole (5) should be run through
It is connected with the axially extending bore of the duplicate gear ontology.
2. precision forging duplicate gear according to claim 1, it is characterised in that: the duplicate gear ontology both ends of the surface are prominent
Run through oil for the first gear (1), second gear (2) outer end face, and in all having in the duplicate gear ontology both ends of the surface
Slot (4) should be connected through oil groove (4) with the axially extending bore of the duplicate gear ontology.
3. precision forging duplicate gear according to claim 1, it is characterised in that: described run through oilhole (5) are clear opening,
And it should intersect through the central axis of oilhole (5) with the central axis upright of the duplicate gear ontology.
4. precision forging duplicate gear according to claim 2, it is characterised in that: in the duplicate gear ontology both ends of the surface
Run through oil groove (4) described in being respectively provided with two, and through oil groove (4) point axially extending bore in the duplicate gear described in two
Central axis two sides.
5. precision forging duplicate gear according to claim 1 or 3, it is characterised in that: the section of the endless oil groove (6)
Semicircular in shape, and its semicircle diameter is less than the bore dia size for running through oilhole (5).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820776943.7U CN208503400U (en) | 2018-05-23 | 2018-05-23 | Precision forging duplicate gear |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820776943.7U CN208503400U (en) | 2018-05-23 | 2018-05-23 | Precision forging duplicate gear |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208503400U true CN208503400U (en) | 2019-02-15 |
Family
ID=65293755
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820776943.7U Expired - Fee Related CN208503400U (en) | 2018-05-23 | 2018-05-23 | Precision forging duplicate gear |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208503400U (en) |
-
2018
- 2018-05-23 CN CN201820776943.7U patent/CN208503400U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20190215 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |