CN219492989U - Countershaft transmission gear forging - Google Patents
Countershaft transmission gear forging Download PDFInfo
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- CN219492989U CN219492989U CN202320882548.8U CN202320882548U CN219492989U CN 219492989 U CN219492989 U CN 219492989U CN 202320882548 U CN202320882548 U CN 202320882548U CN 219492989 U CN219492989 U CN 219492989U
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- gear
- regular polygon
- shaft
- bearing
- integrally formed
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E10/00—Energy generation through renewable energy sources
- Y02E10/70—Wind energy
- Y02E10/72—Wind turbines with rotation axis in wind direction
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Abstract
The utility model provides a countershaft transmission gear forging, comprising: the auxiliary shaft structure comprises a cylindrical base, an installation shaft is integrally formed at the central position of the upper part of the cylindrical base, at least three flat keys are integrally arranged at the junction of the bottom end of the installation shaft and the upper part of the cylindrical base, external threads are arranged on the installation shaft, a cylindrical boss is integrally formed at the central position of the bottom of the cylindrical base, and the transmission structure comprises a gear workpiece obtained by forging and deforming a metal blank. According to the auxiliary shaft transmission gear forging provided by the utility model, the gear workpiece is mounted on the mounting shaft by utilizing the nut, so that the gear workpiece is convenient to mount and dismount and is convenient to replace when the gear workpiece is damaged, the use cost can be effectively reduced, and secondly, the gear workpiece can be prevented from rotating relative to the mounting shaft under the mutual matching of the flat key and the key groove, so that the same positive and negative rotation torque of the gear workpiece is ensured, and the transmission performance is stable.
Description
Technical Field
The utility model relates to the technical field of forgings, in particular to a countershaft transmission gear forgings.
Background
The forging refers to a workpiece or a blank obtained by forging and deforming a metal blank, wherein in order to ensure the quality of transmission gears, some transmission gears are gear workpieces obtained by forging and deforming the metal blank, and the gear workpieces are commonly used in the field of automobile manufacturing and are commonly used transmission members.
At present, chinese patent with publication (bulletin) number CN203162048U discloses a gear transmission shaft, including the first connecting portion, little polished rod, first gear shaft, connecting rod, second gear shaft, big polished rod and second connecting portion that link to each other in proper order, annular draw-in groove has been seted up to the lateral wall of first connecting portion, and the lateral wall of first gear shaft and second gear shaft is equipped with the teeth of a cogwheel, is equipped with the external screw thread on the second connecting portion, and the lateral wall circumference equipartition of connecting rod has at least three blind hole.
Although the gear transmission shaft has the gear teeth of the two gear shafts with the helical teeth with opposite rotation directions, the transmission is stable, the output force is large, and the axial sliding is not easy to generate; the annular clamping groove is additionally arranged, quick axial positioning can be realized through the clamping spring, the installation is convenient and quick, and the two gear shafts are connected through the connecting rod, so that the processing difficulty is reduced. However, the gear transmission shaft has the following problems in the actual use process:
once the gear teeth are damaged, the gear teeth need to be replaced integrally, and the use cost is high.
Disclosure of Invention
The utility model aims to solve the problems in the background art, and provides a countershaft transmission gear forging.
The specific technical scheme is as follows:
a countershaft transmission gear forging comprising:
the auxiliary shaft structure comprises a cylindrical base, wherein an installation shaft is integrally formed at the central position of the upper part of the cylindrical base, at least three flat keys are integrally arranged at the junction of the bottom end of the installation shaft and the upper part of the cylindrical base, external threads are formed on the installation shaft, a cylindrical boss is integrally formed at the central position of the bottom of the cylindrical base, a regular polygon connecting seat is integrally formed at the central position of the bottom of the cylindrical boss, a regular polygon protruding block is integrally formed at the central position of the bottom of the regular polygon connecting seat, and a threaded rod is integrally formed at the central position of the bottom of the regular polygon protruding block;
the transmission structure comprises a gear workpiece obtained by forging and deforming a metal blank, wherein a mounting hole is formed in the center of the gear workpiece, a plurality of key grooves are formed in the hole wall of the mounting hole, the number of the key grooves is equal to that of the flat keys, and one key groove is arranged corresponding to one flat key;
the installation shaft is inserted into the installation hole, the flat key is inserted into the key slot, a nut used for locking the gear workpiece is screwed on the installation shaft, and the nut is located above the gear workpiece.
The countershaft transmission gear forging described above, wherein: and a gasket is sleeved on the mounting shaft and is positioned between the bottom of the nut and the upper part of the gear workpiece.
The countershaft transmission gear forging described above, wherein: the regular polygon connecting seat is sleeved with a first bearing, and the shape of the inner ring surface of the first bearing is regular polygon matched with the shape of the regular polygon connecting seat.
The countershaft transmission gear forging described above, wherein: the upper end of the installation shaft is centrally and integrally provided with a regular polygon installation seat, a second bearing is sleeved on the regular polygon installation seat, and the shape of the inner ring surface of the second bearing is a regular polygon matched with the shape of the regular polygon installation seat.
The countershaft transmission gear forging described above, wherein: the first bearing and the second bearing are deep groove ball bearings.
The countershaft transmission gear forging described above, wherein: the gear workpiece is a bevel gear.
The utility model has the following beneficial effects:
according to the auxiliary shaft transmission gear forging provided by the utility model, the gear workpiece is mounted on the mounting shaft by utilizing the nut, so that the gear workpiece is convenient to mount and dismount and is convenient to replace when the gear workpiece is damaged, the use cost can be effectively reduced, and secondly, the gear workpiece can be prevented from rotating relative to the mounting shaft under the mutual matching of the flat key and the key groove, so that the same positive and negative rotation torque of the gear workpiece is ensured, and the transmission performance is stable.
Drawings
FIG. 1 is a schematic diagram of a countershaft transmission gear forging provided by an embodiment of the present utility model;
fig. 2 is an exploded schematic view of a countershaft transmission gear forging provided by an embodiment of the present utility model;
FIG. 3 is a schematic view of another perspective of a countershaft drive gear forging provided by an embodiment of the present utility model;
fig. 4 is an exploded view of another perspective of a countershaft transmission gear forging provided by an embodiment of the present utility model.
In the accompanying drawings:
1. a second bearing; 2. a nut; 3. a gasket; 4. a gear workpiece; 5. a mounting hole; 6. a key slot; 7. a regular polygon mounting base; 8. an external thread; 9. a mounting shaft; 10. a cylindrical base; 11. a flat key; 12. a cylindrical boss; 13. a regular polygon connecting seat; 14. regular polygon protruding blocks; 15. a threaded rod; 16. a first bearing.
Detailed Description
The technical scheme of the utility model is further described below by the specific embodiments with reference to the accompanying drawings.
Wherein the drawings are for illustrative purposes only and are shown in schematic, non-physical, and not intended to be limiting of the present patent; for the purpose of better illustrating embodiments of the utility model, certain elements of the drawings may be omitted, enlarged or reduced and do not represent the size of the actual product; it will be appreciated by those skilled in the art that certain well-known structures in the drawings and descriptions thereof may be omitted.
The same or similar reference numbers in the drawings of embodiments of the utility model correspond to the same or similar components; in the description of the present utility model, it should be understood that, if the terms "upper", "lower", "left", "right", "inner", "outer", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, only for convenience in describing the present utility model and simplifying the description, rather than indicating or implying that the apparatus or elements being referred to must have a specific orientation, be constructed and operated in a specific orientation, so that the terms describing the positional relationships in the drawings are merely for exemplary illustration and should not be construed as limiting the present patent, and that the specific meaning of the terms described above may be understood by those of ordinary skill in the art according to specific circumstances.
In the description of the present utility model, unless explicitly stated and limited otherwise, the term "coupled" or the like should be interpreted broadly, as it may be fixedly coupled, detachably coupled, or integrally formed, as indicating the relationship of components; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communication between the two parts or interaction relationship between the two parts. The specific meaning of the above terms in the present utility model will be understood in specific cases by those of ordinary skill in the art.
Examples
The countershaft transmission gear forging provided in this embodiment, as shown in fig. 1 to 4, includes: countershaft structure and transmission structure.
The auxiliary shaft structure comprises a cylindrical base 10, an installation shaft 9 is integrally formed at the central position of the upper part of the cylindrical base 10, at least three flat keys 11 are integrally formed at the junction of the bottom end of the installation shaft 9 and the upper part of the cylindrical base 10, the flat keys 11 are arranged in a circular equiangular manner around the installation shaft 9, external threads 8 are arranged on the installation shaft 9, a cylindrical boss 12 is integrally formed at the central position of the bottom of the cylindrical base 10, a regular polygon connecting seat 13 is integrally formed at the central position of the bottom of the cylindrical boss 12, a regular polygon protruding block 14 is integrally formed at the central position of the bottom of the regular polygon connecting seat 13, a threaded rod 15 is integrally formed at the central position of the bottom of the regular polygon protruding block 14, and the threaded rod 15 is used for connecting a component driven to rotate.
Wherein, the transmission structure includes the gear work piece 4 that obtains through forging the deformation to the metal blank, the mounting hole 5 has been seted up to the central point department of gear work piece 4, a plurality of keyways 6 have been seted up on the pore wall of mounting hole 5, the quantity of keyway 6 equals with the quantity of flat key 11, and a keyway 6 corresponds a flat key 11 setting, insert mounting shaft 9 in mounting hole 5, flat key 11 inserts in the keyway 6, the spiro union has the nut 2 that is used for locking gear work piece 4 on the mounting shaft 9, nut 2 is located the top of gear work piece 4, utilize nut 2 to install gear work piece 4 on mounting shaft 9, make gear work piece 4 dismouting more convenient, be convenient for change when gear work piece 4 damages, can effectively reduce use cost, secondly, can prevent under the mutually supporting of flat key 11 and keyway 6 that gear work piece 4 from rotating for mounting shaft 9, thereby guarantee that gear work piece 4's positive and negative twist is the same, the transmission performance is stable.
In order to improve the stability between the nut 2 and the gear workpiece 4, a washer 3 is sleeved on the mounting shaft 9, and the washer 3 is arranged between the bottom of the nut 2 and the upper part of the gear workpiece 4.
In order to improve stability of the auxiliary shaft transmission gear forging piece during installation and use, the regular polygon connecting seat 13 is sleeved with the first bearing 16, and in order to enable the first bearing 16 and the regular polygon connecting seat 13 to be convenient to assemble, the inner ring of the first bearing 16 and the regular polygon connecting seat 13 can be prevented from rotating relatively, and the shape of the inner ring surface of the inner ring of the first bearing 16 is a regular polygon matched with the shape of the regular polygon connecting seat 13.
In order to further improve the stability of the auxiliary shaft transmission gear forging during installation and use, the upper end of the installation shaft 9 is provided with a regular polygon installation seat 7 in a centering mode, and a second bearing 1 is sleeved on the regular polygon installation seat 7, so that the installation shaft 9 and the regular polygon installation seat 7 are convenient to assemble, the inner ring of the second bearing 1 and the regular polygon installation seat 7 can be prevented from rotating relatively, and the shape of the inner ring surface of the inner ring of the second bearing 1 is a regular polygon matched with the shape of the regular polygon installation seat 7.
In order to improve the stability of the first bearing 16 and the second bearing 1, the first bearing 16 and the second bearing 1 are both deep groove ball bearings.
In order to facilitate the counter drive gear forging as a counter drive, the gear workpiece 4 is provided as a bevel gear.
In summary, the countershaft transmission gear forging provided by the embodiment has the following advantages:
the gear workpiece 4 is mounted on the mounting shaft 9 by the nut 2, so that the gear workpiece 4 is convenient to mount and dismount and is convenient to replace when the gear workpiece 4 is damaged, the use cost can be effectively reduced, and secondly, the gear workpiece 4 can be prevented from rotating relative to the mounting shaft 9 under the mutual cooperation of the flat key 11 and the key groove 6, so that the same positive and negative rotation torque of the gear workpiece 4 is ensured, and the transmission performance is stable;
when the auxiliary shaft transmission gear forging is used, the first bearing 16 is sleeved on the regular polygon connecting seat 13, the second bearing 1 is sleeved on the regular polygon mounting seat 7, then the first bearing 16 and the outer ring of the second bearing 1 are fixedly arranged in the transmission shell, the auxiliary shaft transmission gear forging can be conveniently mounted and used, and meanwhile, the gear workpiece 4 is meshed with a driving gear.
The foregoing is merely illustrative of the preferred embodiments of the present utility model and is not intended to limit the embodiments and scope of the present utility model, and it should be appreciated by those skilled in the art that equivalent substitutions and obvious variations may be made using the description and illustrations of the present utility model, and are intended to be included in the scope of the present utility model.
Claims (6)
1. A countershaft transfer gear forging comprising:
the auxiliary shaft structure comprises a cylindrical base (10), wherein an installation shaft (9) is integrally formed at the central position of the upper part of the cylindrical base (10), at least three flat keys (11) are integrally formed at the junction of the bottom end of the installation shaft (9) and the upper part of the cylindrical base (10), external threads (8) are formed on the installation shaft (9), a cylindrical boss (12) is integrally formed at the central position of the bottom of the cylindrical base (10), a regular polygon connecting seat (13) is integrally formed at the central position of the bottom of the cylindrical boss (12), a regular polygon lug (14) is integrally formed at the central position of the bottom of the regular polygon connecting seat (13), and a threaded rod (15) is integrally formed at the central position of the bottom of the regular polygon lug (14);
the transmission structure comprises a gear workpiece (4) obtained by forging and deforming a metal blank, wherein a mounting hole (5) is formed in the center position of the gear workpiece (4), a plurality of key grooves (6) are formed in the hole wall of the mounting hole (5), the number of the key grooves (6) is equal to that of the flat keys (11), and one key groove (6) is arranged corresponding to one flat key (11);
the installation shaft (9) is inserted into the installation hole (5), the flat key (11) is inserted into the key groove (6), a nut (2) used for locking the gear workpiece (4) is screwed on the installation shaft (9), and the nut (2) is located above the gear workpiece (4).
2. Countershaft transmission gear forging according to claim 1, characterized in that the mounting shaft (9) is sleeved with a spacer (3), the spacer (3) being located between the bottom of the nut (2) and the upper part of the gear workpiece (4).
3. Countershaft transmission gear forging according to claim 1, characterized in that the regular polygon connecting seat (13) is sleeved with a first bearing (16), and the shape of the inner ring surface of the first bearing (16) is regular polygon matched with the shape of the regular polygon connecting seat (13).
4. A countershaft transmission gear forging according to claim 3, characterized in that the upper end of the mounting shaft (9) is centrally and integrally provided with a regular polygon mounting seat (7), a second bearing (1) is sleeved on the regular polygon mounting seat (7), and the shape of the inner ring surface of the second bearing (1) is a regular polygon matched with the shape of the regular polygon mounting seat (7).
5. Countershaft transmission gear forging according to claim 4, characterized in that the first bearing (16) and the second bearing (1) are deep groove ball bearings.
6. Countershaft transmission gear forging according to claim 1, characterized in that the gear workpiece (4) is a bevel gear.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320882548.8U CN219492989U (en) | 2023-04-15 | 2023-04-15 | Countershaft transmission gear forging |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320882548.8U CN219492989U (en) | 2023-04-15 | 2023-04-15 | Countershaft transmission gear forging |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219492989U true CN219492989U (en) | 2023-08-08 |
Family
ID=87515526
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202320882548.8U Active CN219492989U (en) | 2023-04-15 | 2023-04-15 | Countershaft transmission gear forging |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN219492989U (en) |
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2023
- 2023-04-15 CN CN202320882548.8U patent/CN219492989U/en active Active
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