CN214036781U - Main reducer flange structure, main reducer assembly and automobile - Google Patents
Main reducer flange structure, main reducer assembly and automobile Download PDFInfo
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- CN214036781U CN214036781U CN202023339554.4U CN202023339554U CN214036781U CN 214036781 U CN214036781 U CN 214036781U CN 202023339554 U CN202023339554 U CN 202023339554U CN 214036781 U CN214036781 U CN 214036781U
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Abstract
The utility model provides a main reducer flange structure, a main reducer assembly and an automobile, which belong to the technical field of vehicles, and comprise a flange body, wherein one end of the flange body, which is used for being connected with a transmission shaft, is provided with at least two dismounting holes at intervals along the circumferential direction, and the dismounting holes are communicated along the axial direction of the flange body; the disassembly hole is used for inserting the top support piece when the flange body and the transmission shaft are disassembled, and the top support piece penetrates through the disassembly hole to press the transmission shaft so as to separate the transmission shaft from the flange body. The utility model provides a main reducer bead structure owing to set up the dismantlement hole, can with the cooperation of top support piece, utilize the roof pressure to promote the mode and make transmission shaft and bead body separation, dismantlement process labour saving and time saving need not to strike bead body surface or transmission shaft to can avoid bead body and transmission shaft to warp and damage.
Description
Technical Field
The utility model belongs to the technical field of the vehicle, more specifically say, relate to a main reducer bead structure, main reducer assembly and car.
Background
The main function of the flange structure of the main speed reducer is to connect a transmission shaft and a driving gear to realize the transmission of torque. The flange structure is matched with the transmission shaft by adopting a spigot structure. Because the fit clearance of flange structure and transmission shaft is less, in order to avoid the installation difficulty, the concave spigot of flange structure and the convex spigot of transmission shaft do not do surface treatment, but along with the use of vehicle, the condition of corrosion can appear in the machined surface, and the time is longer, and the corrosion is more serious, because the fit clearance is filled to the rust, leads to the transmission shaft to dismantle the difficulty. The mode of tradition dismantlement transmission shaft is that generally adopt the mode of strikeing to dismantle, utilizes tools such as bar copper, gluey hammer, through strikeing flange structure surface or transmission shaft besides-star wheel, accomplishes the dismantlement. However, knocking can damage the surface of a part, deform the part, reduce the dynamic balance, affect the assembly quality of the main reducer assembly and cause the problems of Noise Vibration and Harshness (NVH).
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide a main reducer bead structure aims at solving the problem that the utilization that exists among the prior art strikes the mode and dismantles transmission shaft and bead structure and can lead to transmission shaft and bead structural damage, deformation.
In order to achieve the above object, the utility model adopts the following technical scheme: the main speed reducer flange structure comprises a flange body, wherein one end of the flange body, which is used for being connected with a transmission shaft, is provided with at least two dismounting holes at intervals along the circumferential direction, and the dismounting holes are communicated along the axial direction of the flange body;
the disassembly hole is used for inserting a top support piece when the flange body and the transmission shaft are disassembled, and the top support piece penetrates through the disassembly hole to press the transmission shaft so as to separate the transmission shaft from the flange body.
As another embodiment of the present application, at least two of the dismounting holes are equally spaced along the circumference of the flange body.
As another embodiment of the present application, the center points of at least two of the dismounting holes are located on the same circumference, and the center point of the circumference is located on the central axis of the flange body.
As another embodiment of the present application, at least two mounting holes are further formed in one end of the flange body, which is used for being connected with the transmission shaft, at equal intervals along the circumferential direction; the central points of at least two mounting holes are positioned on the same circumference; the mounting hole is used for being connected with the transmission shaft through a threaded connecting piece;
the circumference where the central points of the at least two mounting holes are located coincides with the circumference where the central points of the at least two dismounting holes are located.
As another embodiment of the present application, the diameter of the dismounting hole is the same as the diameter of the mounting hole.
As another embodiment of the present application, the removal hole is a threaded hole.
As another embodiment of the application, one end of the flange body, which is connected with the transmission shaft, is provided with a concave spigot, and the depth of the concave spigot is 2-5 mm.
The utility model provides a main reducer bead structure's beneficial effect lies in: the utility model discloses main reducer bead structure sets up two at least disassembly holes on the bead body, and the disassembly hole link up along the axial of bead body, when dismantling bead body and transmission shaft, uses the top support piece pass the disassembly hole and with the terminal surface butt of transmission shaft, makes the top support piece promote the transmission shaft to make transmission shaft and bead body separation. Compared with the prior art, the dismounting hole is arranged and can be matched with the top support piece, and the top pressure pushing mode is utilized to separate the transmission shaft from the flange body, so that the dismounting process of the transmission shaft is simplified, and time and labor are saved; the reduction of the service life of parts caused by the damage and deformation of products caused by knocking of tools such as copper bars, rubber hammers and the like on the outer surface of the flange body or the outer star wheel of the transmission shaft is avoided, the NVH problem of the whole vehicle caused by the reduction of the dynamic balance is avoided, and the complaint of customers is reduced.
The utility model also provides a main reducer assembly, including foretell main reducer flange structure.
The utility model also provides an automobile, including foretell main reducer assembly.
The utility model provides a beneficial effect of main reducer assembly, car is the same with the beneficial effect of foretell main reducer bead structure, no longer gives unnecessary details here.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings required for the embodiments or the prior art descriptions will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings without creative efforts.
Fig. 1 is a schematic side view of a flange structure of a main reducer according to an embodiment of the present invention;
FIG. 2 is a sectional view taken along line A-A of FIG. 1;
fig. 3 is a schematic view of a connection structure between the flange structure of the final drive unit and the propeller shaft in fig. 2.
In the figure: 1. a flange body; 11. disassembling the hole; 12. mounting holes; 13. a concave spigot; 2. a drive shaft; 3. a top support.
Detailed Description
In order to make the technical problem, technical solution and advantageous effects to be solved by the present invention more clearly understood, the following description is given in conjunction with the accompanying drawings and embodiments to illustrate the present invention in further detail. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.
Referring to fig. 1 to 3 together, the structure of the flange of the main reducer according to the present invention will now be described. The main reducer flange structure comprises a flange body 1, wherein one end, used for being connected with a transmission shaft 2, of the flange body 1 is provided with at least two dismounting holes 11 at equal intervals along the circumferential direction, and the dismounting holes 11 are communicated along the axial direction of the flange body 1. The disassembly hole 11 is used for inserting the top support member 3 when the flange body 1 and the transmission shaft 2 are disassembled, and the top support member 3 penetrates through the disassembly hole 11 to press the transmission shaft 2, so that the transmission shaft 2 is separated from the flange body 1.
It should be noted that, under the normal assembly condition, the flange body 1 and the transmission shaft 2 are connected through a threaded connection piece, and in order to ensure the positioning accuracy of the flange body 1 and the transmission shaft 2, the two are butted by adopting a spigot structure, that is, one end of the flange body 1 is provided with a female spigot 13, and one end of the transmission shaft 2 is located in the female spigot 13 and is butted with the inner wall of the female spigot 13, as shown in fig. 3.
When the flange body 1 and the transmission shaft 2 are disassembled, the threaded connecting piece is disassembled firstly, and the flange body 1 and the transmission shaft 2 cannot be directly disassembled manually due to the fact that the fit clearance of the flange body 1 and the transmission shaft 2 is full of rust, and a disassembling tool is needed. The top support piece 3 penetrates through the dismounting hole 11 and is abutted with the end face of the transmission shaft 2, the top support piece 3 is pushed, so that the top support piece 3 pushes the transmission shaft 2 towards the direction far away from the flange body 1, and the transmission shaft 2 is separated from the flange body 1.
Because the disassembly hole 11 is through along the circumferential direction, when the top support piece 3 is pushed, the disassembly hole 11 can also limit the radial swing of the top support piece 3, so that the thrust applied to the transmission shaft 2 by the top support piece 3 is ensured to be parallel to the axial direction of the transmission shaft 2, and the force application is enlarged.
Compared with the prior art, the dismounting hole 11 is arranged and can be matched with the top support piece 3, and the top pressure pushing mode is utilized to separate the transmission shaft 2 from the flange body 1, so that the dismounting process of the transmission shaft 2 is simplified, and time and labor are saved; the reduction of the service life of parts caused by the damage and deformation of products caused by knocking of tools such as copper bars, rubber hammers and the like on the outer surface of the flange body 1 or the outer star wheel of the transmission shaft 2 is avoided, the NVH problem of the whole vehicle caused by the reduction of the dynamic balance is avoided, and the complaint of customers is reduced.
In order to ensure that the transmission shaft 2 can be stressed in a balanced manner when pushed by the top support member 3, and cannot incline, please refer to fig. 1, which is a specific embodiment of the main reducer flange structure provided by the present invention, at least two dismounting holes 11 are distributed along the circumferential direction of the flange body 1 at equal intervals. The top support pieces 3 penetrate through each dismounting hole 11 to apply thrust to the shaft end of the transmission shaft 2, and because the transmission shaft 2 is coaxially matched with the flange body 1, the thrust of the top support pieces 3 acting on the transmission shaft 2 is distributed at equal intervals along the circumferential direction of the transmission shaft 2, so that the thrust of the transmission shaft 2 can be balanced when being pushed.
In order to facilitate the machining of the dismounting holes 11 on the flange body 1 and the balanced pushing force exerted by the top support 3 on the transmission shaft 2, referring to fig. 1, based on the above embodiment, the central points of at least two dismounting holes 11 are located on the same circumference, and the central point of the circumference is located on the central axis of the flange body 1.
Because at least two dismounting holes 11 are positioned on one circumference, the positioning processing of the dismounting holes 11 is convenient; in addition, because transmission shaft 2 and flange body 1 are coaxial cooperation, so at least two disassembly hole 11 correspond 2 axle head positions of transmission shaft and also lie in the same ring of axle head, and the jack stay piece 3 is used in the same ring of 2 axle heads of transmission shaft, can also further guarantee transmission shaft 2 when being promoted that the axle head atress is balanced, avoids transmission shaft 2 to incline.
In the prior art, the flange body 1 is connected with the transmission shaft 2 through a threaded connector, specifically, referring to fig. 1, at least two mounting holes 12 are formed in one end of the flange body 1, which is used for being connected with the transmission shaft 2, at equal intervals along the circumferential direction, correspondingly, one end of the transmission shaft 2 is also provided with mounting holes, a group of mounting holes 12 of the flange body 1 and a group of mounting holes of the transmission shaft 2 correspond one to one, and the mounting holes are all threaded holes. The thread connecting piece penetrates through the two groups of connecting holes to fix the flange body 1 and the transmission shaft 2 into a whole.
For convenience of manufacturing, the central points of at least two mounting holes 12 are located on the same circumference; in addition, the circumference on which the center points of the at least two mounting holes 12 are located coincides with the circumference on which the center points of the at least two dismounting holes 11 are located, as shown in fig. 1.
Alternatively, one of the dismounting holes 11 is located between two adjacent mounting holes 12, and the distance from the center point of the dismounting hole 11 to the center point of the two mounting holes 12 is equal.
The removal hole 11 is also a screw hole, and the diameter of the removal hole 11 is the same as that of the mounting hole 12. That is, the dismounting holes 11 and the mounting holes 12 have the same structure, and the two groups of holes can be manufactured and molded by using the same processing device, so that the manufacturing steps of the flange body 1 are simplified.
Since the dismounting holes 11 are threaded holes, in the embodiment, the corresponding top supporting members 3 are bolts, when the flange body 1 and the transmission shaft 2 are dismounted, one bolt is screwed into each dismounting hole 11, and the transmission shaft 2 is ejected out by utilizing reverse thrust through screwing in the bolts and is separated from the flange body 1.
In the prior art, the flange body 1 and the transmission shaft 2 are matched by adopting a spigot structure, specifically, one end of the flange body 1 connected with the transmission shaft 2 is a female spigot 13, as shown in fig. 2 and 3, in this embodiment, the depth of the female spigot 13 is 2-5 mm. The depth of the female spigot 13 cannot be too short, otherwise the positioning function in the installation and operation process is lost; and the length of the connecting rod cannot be too long, so that the mounting and the dismounting are influenced, and the material waste is caused.
The utility model also provides a main reducer assembly, including foretell main reducer flange structure.
The utility model also provides an automobile, including foretell main reducer assembly.
The utility model provides a beneficial effect of main reducer assembly, car is the same with the beneficial effect of foretell main reducer bead structure, no longer gives unnecessary details here.
The above description is only exemplary of the present invention and should not be taken as limiting the scope of the present invention, as any modifications, equivalents, improvements and the like made within the spirit and principles of the present invention are intended to be included within the scope of the present invention.
Claims (9)
1. The main speed reducer flange structure is characterized by comprising a flange body, wherein one end of the flange body, which is used for being connected with a transmission shaft, is provided with at least two dismounting holes at intervals along the circumferential direction, and the dismounting holes are communicated along the axial direction of the flange body;
the disassembly hole is used for inserting a top support piece when the flange body and the transmission shaft are disassembled, and the top support piece penetrates through the disassembly hole to press the transmission shaft so as to separate the transmission shaft from the flange body.
2. The flange structure of a final drive according to claim 1, wherein at least two of the dismounting holes are equally spaced along a circumferential direction of the flange body.
3. The flange structure of a final drive according to claim 2, wherein the center points of at least two of the dismounting holes are located on the same circumference, and the center points of the circumferences are located on the central axis of the flange body.
4. The flange structure of the main reducer according to claim 3, wherein the flange body has an end for connecting with the drive shaft further provided with at least two mounting holes at equal intervals in a circumferential direction; the central points of at least two mounting holes are positioned on the same circumference; the mounting hole is used for being connected with the transmission shaft through a threaded connecting piece;
the circumference where the central points of the at least two mounting holes are located coincides with the circumference where the central points of the at least two dismounting holes are located.
5. The flange structure of the final drive according to claim 4, wherein the diameter of the dismounting hole is the same as the diameter of the mounting hole.
6. The flange structure of the final drive according to claim 5, wherein the removal hole is a screw hole.
7. The flange structure of the main reducer according to claim 1, wherein the flange body has a female spigot at an end connected to the drive shaft, and the female spigot has a depth of 2-5 mm.
8. A final drive assembly, characterized by comprising a final drive flange structure according to any one of claims 1 to 7.
9. An automobile, comprising the final drive assembly of claim 8.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
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CN202023339554.4U CN214036781U (en) | 2020-12-31 | 2020-12-31 | Main reducer flange structure, main reducer assembly and automobile |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN202023339554.4U CN214036781U (en) | 2020-12-31 | 2020-12-31 | Main reducer flange structure, main reducer assembly and automobile |
Publications (1)
Publication Number | Publication Date |
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CN214036781U true CN214036781U (en) | 2021-08-24 |
Family
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Family Applications (1)
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CN202023339554.4U Active CN214036781U (en) | 2020-12-31 | 2020-12-31 | Main reducer flange structure, main reducer assembly and automobile |
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CN (1) | CN214036781U (en) |
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2020
- 2020-12-31 CN CN202023339554.4U patent/CN214036781U/en active Active
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