CN103758850A - Dynamic balance-adjustable transmission shaft structure and machining method for same - Google Patents
Dynamic balance-adjustable transmission shaft structure and machining method for same Download PDFInfo
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- CN103758850A CN103758850A CN201410058171.XA CN201410058171A CN103758850A CN 103758850 A CN103758850 A CN 103758850A CN 201410058171 A CN201410058171 A CN 201410058171A CN 103758850 A CN103758850 A CN 103758850A
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- transmission shaft
- entity transmission
- dynamic balancing
- dynamic balance
- axial hole
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Abstract
The invention provides a dynamic balance-adjustable transmission shaft structure which comprises a solid transmission shaft, wherein an axial through hole is formed in the solid transmission shaft; the diameter of the axial through hole does not exceed 1/2 of the external diameter of the solid transmission shaft; a dynamic balance piece is welded on the outer circumferential wall of the solid transmission shaft in a resistance projection welding way. According to the dynamic balance-adjustable transmission shaft structure, the electrical conductivity and thermal conductivity of the solid transmission shaft can be greatly improved to meet the requirements of the resistance projection welding on the electrical conductivity and thermal conductivity of a material through the axial through hole; the dynamic balance piece can be firmly welded with the solid transmission shaft together in the resistance projection welding way, so that the dynamic balance of the solid transmission shaft is realized, and the service life is prolonged. The invention further provides a method for machining the dynamic balance-adjustable transmission shaft structure. The dynamic balance-adjustable transmission shaft structure machined by the method has the advantage of firmer combination of the dynamic balance piece and the solid transmission shaft.
Description
Technical field
The present invention relates to a kind of entity transmission shaft, particularly relate to a kind of adjustable dynamically balanced transmission shaft structure and processing method thereof.
Background technique
Truck drive shaft can transmit torsion at two between centers, two between centers that relative position constantly changes even in the course of the work in different axle center, connect or assemble every accessory and circular object accessory removable or that rotate, generally all using light and the good alloy steel pipe of resistance to torsion is made.The effect of truck drive shaft is exactly to make to transmit torsion at two between centers, two between centers that relative position constantly changes even in the course of the work in different axle center.
Truck drive shaft is comprised of central siphon, telescopic cover and universal joint.Telescopic cover can regulate the variation of distance between speed changer and ransaxle automatically.Universal joint is the variation that guarantees transmission output shaft and ransaxle input shaft two axial lines angle, and realizes the isogonism speed transmission of diaxon.In order to satisfy the demands, while reducing High Rotation Speed, because of the excessive vibration causing of unbalancing value of transmission shaft, in processing transmission shaft process, need transmission shaft to carry out dynamic balance calibration.Dynamic balance calibration is generally to realize by adopting the mode of resistance projection-welding to weld dynamic balancing sheet on transmission shaft outer circle wall, is commonly referred to as transmission shaft structure after welding dynamic balancing sheet on transmission shaft outer circle wall.
As depicted in figs. 1 and 2, transmission shaft is generally divided into tubulose transmission shaft 11 and entity transmission shaft 21.Tubulose transmission shaft 11 compares with entity transmission shaft 21 that common volume is large, intensity is low.Because tubulose transmission shaft 11 centers are cavitys, so tubulose transmission shaft 11 is compared with entity transmission shaft 21, the electric conductivity of tubulose transmission shaft 11 and thermal conductivity are relatively large, and can meet the requirement of resistance projection-welding to material electric conductivity and thermal conductivity, therefore, adopt resistance projection-welding dynamic balancing sheet 12 and tubulose transmission shaft 11 firmly can be linked together.
As depicted in figs. 1 and 2, car load transmission system adopts tubulose transmission shaft 11 conventionally, yet sometimes car load transmission system, because of limited space and requirement of strength restriction, can not be selected tubulose transmission shaft 11, can only select entity transmission shaft 21.Because entity transmission shaft 21 is entity, reduced electric conductivity and the thermal conductivity of entity transmission shaft 21, cause the electric conductivity of entity transmission shaft 21 and thermal conductivity can not meet the requirement of resistance projection-welding to material electric conductivity and thermal conductivity.When adopting resistance projection-welding that dynamic balancing sheet 12 and entity transmission shaft 21 are linked together, combination force between dynamic balancing sheet 12 and entity transmission shaft 21 is smaller, dynamic balancing sheet 12 is easy to depart from from entity transmission shaft 21, cannot realize the dynamic balancing of entity transmission shaft 21.
Summary of the invention
The shortcoming of prior art in view of the above, first technical problem that the present invention will solve is to provide a kind of dynamic balancing sheet and is combined more adjustable dynamically balanced transmission shaft structure with entity transmission shaft.
Second technical problem that the present invention will solve is to provide a kind of method of processing adjustable dynamically balanced transmission shaft structure.
For solving first technical problem, the present invention by the following technical solutions:
An adjustable dynamically balanced transmission shaft structure, comprises entity transmission shaft, on described entity transmission shaft, offers an axial hole, and the diameter of described axial hole is no more than 1/2nd of described entity transmission shaft outer diameter; On described entity transmission shaft outer circle wall, by resistance projection-welding, be welded with a dynamic balancing sheet.
Further, described axial hole and described entity transmission shaft are coaxial.
Further, described dynamic balancing sheet is curved, and the inner arc wall of described arc dynamic balancing sheet and the outer circle wall of described entity transmission shaft match.
Further, the diameter of described axial hole is 1/3rd of described entity transmission shaft outer diameter.
As mentioned above, adjustable dynamically balanced transmission shaft structure of the present invention, has following beneficial effect:
Owing to offering an axial hole on described entity transmission shaft, the diameter of described axial hole is no more than 1/2nd of described entity transmission shaft outer diameter, thereby electric conductivity and the thermal conductivity of described entity transmission shaft have greatly been improved, make electric conductivity and the thermal conductivity of entity transmission shaft can meet the requirement of resistance projection-welding to material electric conductivity and thermal conductivity, by resistance projection-welding, dynamic balancing sheet and entity transmission shaft firmly can be welded together, realized the dynamic balancing of entity transmission shaft, and also improved working life.
For solving second technical problem, the present invention by the following technical solutions:
A method of processing adjustable dynamically balanced transmission shaft structure, comprises the steps:
1), described entity transmission shaft is provided, on described entity transmission shaft, process described axial hole, the diameter of described axial hole is no more than 1/2nd of described entity transmission shaft outer diameter;
2), adopt resistance projection-welding that described dynamic balancing sheet is welded on described entity transmission shaft outer circle wall.
Further, described axial hole and described entity transmission shaft are coaxial.
Further, described dynamic balancing sheet is curved, and the inner arc wall of described arc dynamic balancing sheet and the outer circle wall of described entity transmission shaft match.
Further, the diameter of described axial hole is 1/3rd of described entity transmission shaft outer diameter.
As mentioned above, a kind of method of processing adjustable dynamically balanced transmission shaft structure of the present invention, has following beneficial effect:
The adjustable dynamically balanced transmission shaft structure making by the method has dynamic balancing sheet and is combined more firmly advantage with entity transmission shaft.
Accompanying drawing explanation
Fig. 1 is shown as the sectional view of adjustable dynamically balanced tubulose transmission shaft of the prior art.
Fig. 2 is shown as the sectional view of adjustable dynamically balanced transmission shaft structure of the prior art.
Fig. 3 is shown as the sectional view of adjustable dynamically balanced transmission shaft structure of the present invention.
Element numbers explanation
11 tubulose transmission shaft 21 entity transmission shafts
12 dynamic balancing sheet 31 entity transmission shafts
33 axial hole 32 dynamic balancing sheets
Embodiment
By particular specific embodiment explanation embodiments of the present invention, person skilled in the art scholar can understand other advantages of the present invention and effect easily by the disclosed content of this specification below.
Notice, appended graphic the illustrated structure of this specification, ratio, size etc., equal contents in order to coordinate specification to disclose only, for person skilled in the art scholar, understand and read, not in order to limit the enforceable qualifications of the present invention, therefore the technical essential meaning of tool not, the adjustment of the modification of any structure, the change of proportionate relationship or size, do not affecting under the effect that the present invention can produce and the object that can reach, all should still drop in the scope that disclosed technology contents can contain.Simultaneously, in this specification, quote as " on ", the term of D score, " left side ", " right side ", " centre " and " " etc., also only for ease of understanding of narrating, but not in order to limit the enforceable scope of the present invention, the change of its relativeness or adjustment, under without essence change technology contents, when being also considered as the enforceable category of the present invention.
As shown in Figure 3, the invention provides a kind of adjustable dynamically balanced transmission shaft structure, comprise entity transmission shaft 31, on described entity transmission shaft 31, offer an axial hole 33, best, described axial hole 33 is coaxial with described entity transmission shaft 31, and the diameter of described axial hole 33 is no more than 1/2nd of described entity transmission shaft 31 outer diameters; Described entity transmission shaft 31 outer circle walls are provided with a dynamic balancing sheet 32, and particularly, described dynamic balancing sheet 32 is provided with a plurality of salient points, adopt resistance projection-welding that described dynamic balancing sheet 32 is welded on described entity transmission shaft 31 outer circle walls.Because resistance projection-welding can be arranged solder joint and the not restriction of receptor site distance on narrow position, and the strength ratio of each point is more even, therefore can will firmly weld together outside described dynamic balancing sheet 32 and described entity transmission shaft 31 by resistance projection-welding.Owing to offering an axial hole 33 on described entity transmission shaft 31, thereby electric conductivity and the thermal conductivity of described entity transmission shaft 31 have greatly been improved, make electric conductivity and the thermal conductivity of entity transmission shaft 31 can meet the requirement of resistance projection-welding to material electric conductivity and thermal conductivity, by resistance projection-welding, dynamic balancing sheet 32 and entity transmission shaft 31 firmly can be welded together, realized the dynamic balancing of entity transmission shaft 31, and also improved working life.
As the present invention, further improve, as shown in Figure 3, described dynamic balancing sheet 32 is curved, and the inner arc wall of described arc dynamic balancing sheet and the outer circle wall of described entity transmission shaft 31 match.Because the inner arc wall of described arc dynamic balancing sheet and the outer circle wall of described entity transmission shaft 31 match, thereby greatly increased the bonded area of the outer circle wall of described arc dynamic balancing sheet and described entity transmission shaft 31, improved the combination force of described arc dynamic balancing sheet and described entity transmission shaft 31, therefore described arc dynamic balancing sheet and described entity transmission shaft 31 combinations is more firm, realize the dynamic balancing of described entity transmission shaft 31, and extended working life.
As the present invention, further improve, as shown in Figure 3, guaranteeing the requirement of mechanical strength that meets of described entity transmission shaft 31, and the electric conductivity of described entity transmission shaft 31 and thermal conductivity can meet resistance projection-welding in the situation of the requirement of material electric conductivity and thermal conductivity, the diameter of described axial hole 33 is 1/3rd of described entity transmission shaft 31 outer diameters.The inner diameter of tubulose transmission shaft is far longer than 1/3rd of its outer diameter, and therefore, even if offer an axial hole 33 on described entity transmission shaft 31, the intensity of described entity transmission shaft 31 is also far longer than the mechanical strength of tubulose transmission shaft.For example conventional described entity transmission shaft 31 outer diameters are 30mm, and the diameter of described axial hole 33 is 10mm.
In sum, a kind of adjustable dynamically balanced transmission shaft structure provided by the invention, owing to offering an axial hole 33 on described entity transmission shaft 31, thereby electric conductivity and the thermal conductivity of described entity transmission shaft 31 have greatly been improved, make electric conductivity and the thermal conductivity of entity transmission shaft 31 can meet the requirement of resistance projection-welding to material electric conductivity and thermal conductivity, by resistance projection-welding, dynamic balancing sheet 32 and entity transmission shaft 31 firmly can be welded together, realized the dynamic balancing of entity transmission shaft 31, and also improved working life, so, the present invention has effectively overcome various shortcoming of the prior art and tool high industrial utilization.
The method of processing above-mentioned adjustable dynamically balanced transmission shaft structure comprises the steps:
1), described entity transmission shaft 31 is provided, on described entity transmission shaft 31, process described axial hole 33, best, described axial hole 33 is coaxial with described entity transmission shaft 31.The diameter of described axial hole 33 is no more than 1/2nd of described entity transmission shaft 31 outer diameters, best, and the diameter of described axial hole 33 is 1/3rd of described entity transmission shaft 31 outer diameters.
2), adopt resistance projection-welding that described dynamic balancing sheet 32 is welded on described entity transmission shaft 31 outer circle walls.Best, described dynamic balancing sheet 32 is curved, and the inner arc wall of described arc dynamic balancing sheet and the outer circle wall of described entity transmission shaft 31 match.
The adjustable dynamically balanced transmission shaft structure making by said method has dynamic balancing sheet 32 and entity transmission shaft 31 in conjunction with advantage more firmly.
Above-described embodiment is illustrative principle of the present invention and effect thereof only, but not for limiting the present invention.Any person skilled in the art scholar all can, under spirit of the present invention and category, modify or change above-described embodiment.Therefore, such as in affiliated technical field, have and conventionally know that the knowledgeable, not departing from all equivalence modifications that complete under disclosed spirit and technological thought or changing, must be contained by claim of the present invention.
Claims (8)
1. an adjustable dynamically balanced transmission shaft structure, it is characterized in that, comprise entity transmission shaft (31), offer an axial hole (33) on described entity transmission shaft (31), the diameter of described axial hole (33) is no more than 1/2nd of described entity transmission shaft (31) outer diameter; On described entity transmission shaft (31) outer circle wall, by resistance projection-welding, be welded with a dynamic balancing sheet (32).
2. adjustable dynamically balanced transmission shaft structure according to claim 1, is characterized in that: described axial hole (33) is coaxial with described entity transmission shaft (31).
3. adjustable dynamically balanced transmission shaft structure according to claim 1, is characterized in that: described dynamic balancing sheet (32) is curved, and the outer circle wall of the inner arc wall of described arc dynamic balancing sheet (32) and described entity transmission shaft (31) matches.
4. adjustable dynamically balanced transmission shaft structure according to claim 1, is characterized in that: the diameter of described axial hole (33) is 1/3rd of described entity transmission shaft (31) outer diameter.
5. a method for processing adjustable dynamically balanced transmission shaft structure claimed in claim 1, is characterized in that: comprise the steps:
1), described entity transmission shaft (31) is provided, at the upper processing of described entity transmission shaft (31) described axial hole (33), the diameter of described axial hole (33) is no more than 1/2nd of described entity transmission shaft (31) outer diameter;
2), adopt resistance projection-welding that described dynamic balancing sheet (32) is welded on described entity transmission shaft (31) outer circle wall.
6. the method for processing transmission shaft structure according to claim 5, is characterized in that: described axial hole (33) is coaxial with described entity transmission shaft (31).
7. the method for processing transmission shaft structure according to claim 5, is characterized in that: described dynamic balancing sheet (32) is curved, and the outer circle wall of the inner arc wall of described arc dynamic balancing sheet and described entity transmission shaft (31) matches.
8. the method for processing transmission shaft structure according to claim 5, is characterized in that: the diameter of described axial hole (33) is 1/3rd of described entity transmission shaft (31) outer diameter.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410058171.XA CN103758850A (en) | 2014-02-20 | 2014-02-20 | Dynamic balance-adjustable transmission shaft structure and machining method for same |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410058171.XA CN103758850A (en) | 2014-02-20 | 2014-02-20 | Dynamic balance-adjustable transmission shaft structure and machining method for same |
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| Publication Number | Publication Date |
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| CN103758850A true CN103758850A (en) | 2014-04-30 |
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| CN201410058171.XA Pending CN103758850A (en) | 2014-02-20 | 2014-02-20 | Dynamic balance-adjustable transmission shaft structure and machining method for same |
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Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0694024A (en) * | 1991-12-06 | 1994-04-05 | Toho Rayon Co Ltd | Fiber-reinforced-resin-made drive shaft and manufacture thereof |
| US6334568B1 (en) * | 1995-10-19 | 2002-01-01 | American Axle & Manufaturing, Inc. | Dynamically balanced driveshaft assembly and method of balancing same |
| JP2008202068A (en) * | 2007-02-16 | 2008-09-04 | Jfe Steel Kk | Component for machine structure |
| KR20110047081A (en) * | 2009-10-29 | 2011-05-06 | 현대 파워텍 주식회사 | Shaft for transmission and treatment method thereof |
| CN102109002A (en) * | 2010-09-16 | 2011-06-29 | 杭州万向传动轴有限公司 | Novel adjustable dynamic balance transmission shaft |
| CN203297310U (en) * | 2013-05-30 | 2013-11-20 | 杭州萧山兴发机械有限公司 | Transmission shaft with high-precision assembling performance |
-
2014
- 2014-02-20 CN CN201410058171.XA patent/CN103758850A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0694024A (en) * | 1991-12-06 | 1994-04-05 | Toho Rayon Co Ltd | Fiber-reinforced-resin-made drive shaft and manufacture thereof |
| US6334568B1 (en) * | 1995-10-19 | 2002-01-01 | American Axle & Manufaturing, Inc. | Dynamically balanced driveshaft assembly and method of balancing same |
| JP2008202068A (en) * | 2007-02-16 | 2008-09-04 | Jfe Steel Kk | Component for machine structure |
| KR20110047081A (en) * | 2009-10-29 | 2011-05-06 | 현대 파워텍 주식회사 | Shaft for transmission and treatment method thereof |
| CN102109002A (en) * | 2010-09-16 | 2011-06-29 | 杭州万向传动轴有限公司 | Novel adjustable dynamic balance transmission shaft |
| CN203297310U (en) * | 2013-05-30 | 2013-11-20 | 杭州萧山兴发机械有限公司 | Transmission shaft with high-precision assembling performance |
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Application publication date: 20140430 |