CN204628248U - Driving shaft forging - Google Patents
Driving shaft forging Download PDFInfo
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- CN204628248U CN204628248U CN201520275742.5U CN201520275742U CN204628248U CN 204628248 U CN204628248 U CN 204628248U CN 201520275742 U CN201520275742 U CN 201520275742U CN 204628248 U CN204628248 U CN 204628248U
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- taper
- driving shaft
- hand tap
- angle
- tapered
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Abstract
The utility model relates to a kind of driving shaft forging.It solve the technical problems such as existing driving shaft forging precision is low.Comprise forging axis body, first taper, second taper, third hand tap body, vertex of a cone body, first tapered transitional is connected with the second tapered transitional, and be provided with arc-shaped transition body between the second taper and the second tapered transitional, ring-shaped step is provided with between second tapered transitional and third hand tap body, the discoid body coaxially arranged with third hand tap body is provided with in third hand tap body lower end, discoid body lower end is provided with the cylinder coaxially arranged with discoid body, and cylinder week has cylindrical hole to the inside, the tapered blind hole coaxially arranged with cylindrical hole is provided with in discoid body, and the pore size of cylindrical hole is greater than the pore size of tapered blind hole.Advantage is: precision is high, is easy to keep the quality of driving shaft, and structure is simple and be easy to manufacture.
Description
Technical field
The utility model belongs to technical field of automobile, particularly relates to a kind of driving shaft forging.
Background technique
Driving shaft is the vital part on automobile, be mainly used in the transmission of automobile variable speed mechanism, it requires higher surface hardness and center toughness, but due to the particularity of its shape and the significance of usability thereof, thus the difficulty of its processing is added, common driving shaft is formed after finish turning primarily of driving shaft forging, so the quality of driving shaft forging determines the quality of the driving shaft after processing to a certain extent, but common driving shaft forging also exists: structural strength is lower, precision is low, poor stability, thus easily reduce the quality of the driving shaft after processing.
In order to solve prior art Problems existing, people have carried out long-term exploration, propose solution miscellaneous.Such as, Chinese patent literature discloses a kind of forging method [application number: 201210299983.4] of gearbox driving shaft, comprise the following steps: a, cast cylinder blank step, in cylinder blank, chemical component weight percentage is: 0.096%≤C≤0.150%, 2.1%≤Si≤2.40%, 1.1%≤Mn≤1.30%, trace≤P≤0.033%, trace≤S≤0.0260%, Ni0.11-0.22%, 8.50%≤Cr≤11.50%, trace≤B≤0.0018%, surplus is Fe and is inevitably mingled with matter; The base substrate temperature of moulding by casting is down to 350 DEG C, then is heated to 670-760 DEG C, insulation 3-5 hour, and stove is chilled to 300 DEG C, is incubated 4 hours, then is heated to 650-760 DEG C, is incubated 17 hours, is cooled to 400 DEG C with 50 DEG C/h, then with 20 DEG C/h, be cooled to 140 DEG C; B, forging step select diameter to be 30 round steel, utilize cut-off machine to carry out blanking, blank length 70.3mm after shearing; The blank of step 1 is put into intermediate-frequency heating furnace heating, heating-up temperature 1120-1180 DEG C, keep 3.6min heating time.
Above-mentioned scheme improves the subproblem of prior art to a certain extent, but the program fail thoroughly solve above-mentioned technical problem, particularly the technical problem of and poor stability low for driving shaft forging precision, reduces end product quality so virtually.
Summary of the invention
The purpose of this utility model is for the problems referred to above, provides a kind of design more reasonable, the driving shaft forging of good stability.
For achieving the above object, the utility model have employed following technical proposal: this driving shaft forging, comprise forging axis body, it is characterized in that, described forging axis body comprises diameter and becomes large gradually and the first taper be coaxially connected successively, second taper and third hand tap body, and the first described taper, the diameter of the upper end of the second taper and third hand tap body becomes large all gradually to the diameter of lower end, there is in the first taper upper end the vertex of a cone body coaxially arranged with the first taper, the first tapered transitional is provided with between the first described taper and the second taper, the second described taper is connected by the second tapered transitional with between third hand tap body, and be provided with arc-shaped transition body between the second described taper and the second tapered transitional, ring-shaped step is provided with between the second described tapered transitional and third hand tap body, the discoid body coaxially arranged with third hand tap body is provided with in third hand tap body lower end, described discoid body lower end is provided with the cylinder coaxially arranged with discoid body, and described cylinder week has cylindrical hole to the inside, the tapered blind hole coaxially arranged with cylindrical hole is provided with in discoid body, and the pore size of described cylindrical hole is greater than the pore size of tapered blind hole.The forging axis body of said structure is adopted to have precision high, the feature of good stability.
In above-mentioned driving shaft forging, described vertex of a cone body upper end is circumferentially with the first curved transition sections, and lower end is circumferentially with the second curved transition sections between vertex of a cone body and the first taper.
In above-mentioned driving shaft forging, described third hand tap body upper end is circumferentially with the 3rd curved transition sections be positioned on ring-shaped step, and lower end is circumferentially with the 4th curved transition sections.
In above-mentioned driving shaft forging, the conical surface of the conical surface of the first described taper, the conical surface of the second taper and the second tapered transitional all and between the upper end end face of vertex of a cone body forms the first angle, and the size of the first described angle is 86.5 °-87.5 °.Preferably, the size of the first angle is here 87.5 °.
In above-mentioned driving shaft forging, outer circumferential, described discoid body upper and lower two ends all has the first arc angling portion.
In above-mentioned driving shaft forging, between the conical surface of described third hand tap body and discoid body, form the second angle, and the size of the second described angle is 103 °-105 °.Preferably, the size of the second angle is here 104 °.
In above-mentioned driving shaft forging, between the inner conical surface of described tapered blind hole and the axis of forging axis body, form the 3rd angle, and the size of the 3rd described angle is 20 °.
In above-mentioned driving shaft forging, between the external conical surface of the described vertex of a cone and the upper end end face of vertex of a cone body, form the 4th angle, and the size of the 4th described angle is 80 °.
In above-mentioned driving shaft forging, the outer circumferential of described cylinder lower end and week are equipped with the second arc angling portion to the inside.
In above-mentioned driving shaft forging, between described cylindrical hole and tapered blind hole, pass through arc-shaped transition.
Compared with prior art, the advantage of this driving shaft forging is: 1, design is more reasonable, and precision is high, is easy to the quality keeping driving shaft; 2, good stability, structure is simple and be easy to manufacture.
Accompanying drawing explanation
Fig. 1 is the structural representation that the utility model provides.
In figure, forging axis body 1, first taper 11, second taper 12, third hand tap body 13, the 3rd curved transition sections 131, the 4th curved transition sections 132, vertex of a cone body 14, first curved transition sections 141, second curved transition sections 142, first tapered transitional 15, second tapered transitional 16, arc-shaped transition body 17, ring-shaped step 18, discoid body 2, cylinder 21, cylindrical hole 22, arc angling portion 25, first of tapered blind hole 23, first arc angling portion 24, second angle α 1, second angle α 2, the 3rd angle α 3, the 4th angle α 4.
Embodiment
Below in conjunction with the drawings and specific embodiments, the utility model is described in more detail.
As shown in Figure 1, this driving shaft forging, comprise forging axis body 1, forging axis body 1 comprises diameter and becomes large gradually and the first taper 11 be coaxially connected successively, second taper 12 and third hand tap body 13, and the first taper 11, the diameter of the upper end of the second taper 12 and third hand tap body 13 becomes large all gradually to the diameter of lower end, there is in the first taper 11 upper end with the first taper 11 the coaxial vertex of a cone body 14 arranged, the first tapered transitional 15 is provided with between first taper 11 and the second taper 12, second taper 12 is connected by the second tapered transitional 16 with between third hand tap body 13, and be provided with arc-shaped transition body 17 between the second taper 12 and the second tapered transitional 16, ring-shaped step 18 is provided with between second tapered transitional 16 and third hand tap body 13, the coaxial discoid body 2 arranged is provided with third hand tap body 13 in third hand tap body 13 lower end, discoid body 2 lower end is provided with the coaxial cylinder 21 arranged with discoid body 2, and cylinder has cylindrical hole 22 in 21 weeks to the inside, the coaxial tapered blind hole 23 arranged with cylindrical hole 22 is provided with in discoid body 2, and the pore size of cylindrical hole 22 is greater than the pore size of tapered blind hole 23, adopt forging axis body 1 precision of this structure high, good stability.
Particularly, vertex of a cone body 14 upper end in the present embodiment is circumferentially with the first curved transition sections 141, and lower end is circumferentially with the second curved transition sections 142 between vertex of a cone body 14 and the first taper 11.Here third hand tap body 13 upper end is circumferentially with the 3rd curved transition sections 131 be positioned on ring-shaped step 18, and lower end is circumferentially with the 4th curved transition sections 132.Here outer circumferential, discoid body about 2 two ends all has the first arc angling portion 24.The outer circumferential of cylinder 21 lower end here and be equipped with the second arc angling portion 25 week to the inside.In addition, arc-shaped transition is passed through between cylindrical hole 22 here and tapered blind hole 23.
Further, the conical surface of the conical surface of the first taper 11 here, the conical surface of the second taper 12 and the second tapered transitional 16 all and between the upper end end face of vertex of a cone body 14 forms the first angle α 1, and the size of the first angle α 1 is 86.5 °-87.5 °.Wherein, between the conical surface of third hand tap body 13 here and discoid body 2, form the second angle α 2, and the size of the second angle α 2 is 103 °-105 °.Similarly, between the inner conical surface of tapered blind hole 23 here and the axis of forging axis body 1, form the 3rd angle α 3, and the size of the 3rd angle α 3 is 20 °.Here form the 4th angle α 4 between vertex of a cone body 14 male cone (strobilus masculinus) and the upper end end face of vertex of a cone body 14, and the size of the 4th angle α 4 is 80 °.
Specific embodiment described herein is only to the explanation for example of the utility model spirit.The utility model person of ordinary skill in the field can make various amendment or supplements or adopt similar mode to substitute to described specific embodiment, but can't depart from spirit of the present utility model or surmount the scope that appended claims defines.
Although more employ forging axis body 1 herein, first taper 11, second taper 12, third hand tap body 13, 3rd curved transition sections 131, 4th curved transition sections 132, vertex of a cone body 14, first curved transition sections 141, second curved transition sections 142, first tapered transitional 15, second tapered transitional 16, arc-shaped transition body 17, ring-shaped step 18, discoid body 2, cylinder 21, cylindrical hole 22, tapered blind hole 23, first arc angling portion 24, second arc angling portion 25, first angle α 1, second angle α 2, 3rd angle α 3, 4th term such as angle α 4 grade, but do not get rid of the possibility using other term.These terms are used to be only used to describe and explain essence of the present utility model more easily; The restriction that they are construed to any one additional is all contrary with the utility model spirit.
Claims (10)
1. a driving shaft forging, comprise forging axis body (1), it is characterized in that, described forging axis body (1) comprises diameter and becomes large gradually and the first taper (11) be coaxially connected successively, second taper (12) and third hand tap body (13), and described the first taper (11), the diameter of the upper end of the second taper (12) and third hand tap body (13) becomes large all gradually to the diameter of lower end, there is in the first taper (11) upper end the coaxial vertex of a cone body (14) arranged with the first taper (11), the first tapered transitional (15) is provided with between described the first taper (11) and the second taper (12), described the second taper (12) is connected by the second tapered transitional (16) with between third hand tap body (13), and be provided with arc-shaped transition body (17) between described the second taper (12) and the second tapered transitional (16), ring-shaped step (18) is provided with between described the second tapered transitional (16) and third hand tap body (13), the coaxial discoid body (2) arranged with third hand tap body (13) is provided with in third hand tap body (13) lower end, described discoid body (2) lower end is provided with the coaxial cylinder (21) arranged with discoid body (2), and described cylinder (21) week has cylindrical hole (22) to the inside, the coaxial tapered blind hole (23) arranged with cylindrical hole (22) is provided with in discoid body (2), and the pore size of described cylindrical hole (22) is greater than the pore size of tapered blind hole (23).
2. driving shaft forging according to claim 1, it is characterized in that, described vertex of a cone body (14) upper end is circumferentially with the first curved transition sections (141), and lower end is circumferentially with the second curved transition sections (142) be positioned between vertex of a cone body (14) and the first taper (11).
3. driving shaft forging according to claim 2, it is characterized in that, described third hand tap body (13) upper end is circumferentially with the 3rd curved transition sections (131) be positioned on ring-shaped step (18), and lower end is circumferentially with the 4th curved transition sections (132).
4. the driving shaft forging according to claim 1 or 2 or 3, it is characterized in that, all and form the first angle (α 1) between the upper end end face of vertex of a cone body (14), and the size of the first described angle (α 1) is 86.5 °-87.5 ° to the conical surface of the conical surface of described the first taper (11), the conical surface of the second taper (12) and the second tapered transitional (16).
5. driving shaft forging according to claim 4, is characterized in that, described discoid body (2) all has the first arc angling portion (24) in outer circumferential, two ends up and down.
6. driving shaft forging according to claim 4, it is characterized in that, form the second angle (α 2) between the conical surface of described third hand tap body (13) and discoid body (2), and the size of the second described angle (α 2) is 103 °-105 °.
7. driving shaft forging according to claim 1, it is characterized in that, form the 3rd angle (α 3) between the inner conical surface of described tapered blind hole (23) and the axis of forging axis body (1), and the size of described the 3rd angle (α 3) is 20 °.
8. driving shaft forging according to claim 1, it is characterized in that, form the 4th angle (α 4) between described vertex of a cone body (14) male cone (strobilus masculinus) and the upper end end face of vertex of a cone body (14), and the size of described the 4th angle (α 4) is 80 °.
9. driving shaft forging according to claim 4, is characterized in that, the outer circumferential of described cylinder (21) lower end and be equipped with the second arc angling portion (25) week to the inside.
10. driving shaft forging according to claim 4, is characterized in that, passes through arc-shaped transition between described cylindrical hole (22) and tapered blind hole (23).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520275742.5U CN204628248U (en) | 2015-04-29 | 2015-04-29 | Driving shaft forging |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520275742.5U CN204628248U (en) | 2015-04-29 | 2015-04-29 | Driving shaft forging |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204628248U true CN204628248U (en) | 2015-09-09 |
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ID=54047282
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520275742.5U Expired - Fee Related CN204628248U (en) | 2015-04-29 | 2015-04-29 | Driving shaft forging |
Country Status (1)
| Country | Link |
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| CN (1) | CN204628248U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104806623A (en) * | 2015-04-29 | 2015-07-29 | 德清德曼汽车零部件有限公司 | Driving shaft forge piece |
-
2015
- 2015-04-29 CN CN201520275742.5U patent/CN204628248U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104806623A (en) * | 2015-04-29 | 2015-07-29 | 德清德曼汽车零部件有限公司 | Driving shaft forge piece |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20150909 Termination date: 20160429 |