CN103148110B - Articulated cross shaft - Google Patents
Articulated cross shaft Download PDFInfo
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- CN103148110B CN103148110B CN201310103505.6A CN201310103505A CN103148110B CN 103148110 B CN103148110 B CN 103148110B CN 201310103505 A CN201310103505 A CN 201310103505A CN 103148110 B CN103148110 B CN 103148110B
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- spindle nose
- approximate circle
- circle taper
- taper transition
- transition bench
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Abstract
Concentrate in stress for the articulated cross shaft in the Hooks coupling universal coupling in existing heavy duty and super-heavy load field and very easily produce the technical barrier of fatigue fracture, the invention provides a kind of articulated cross shaft that can reduce stress and concentrate, between the bottom and matrix of each spindle nose, be equipped with one in approximate circle taper transition bench, each spindle nose seamlessly transits in approximate circle taper transition bench with coupled; On shaft section, approximate circle taper transition bench bus is oval camber line.The technique effect that the present invention is useful is: by being provided with one respectively in approximate circle taper transition bench between the matrix and spindle nose of articulated cross shaft, each in approximate circle taper transition bench be attached thereto connect be level and smooth transition between spindle nose root and matrix, and without the sudden change of sectional shape, thus the stress alleviating cross axle spindle nose root is concentrated, improve the intensity of cross axle, decrease the possibility of fatigue fracture.
Description
Technical field
The invention belongs to Hooks coupling universal coupling technical field, be specifically related to for heavy duty and super-heavy load field Hooks coupling universal coupling in articulated cross shaft.
Background technique
At present, be widely used in the articulated cross shaft very easily corrupted of heavy duty on the main transmission of the heavy machineries such as rougher of hot strip mill machine, heavy merchant mill, punch, middle Wide and Thick Slab and steckel mill and super-heavy load universal coupling with spider: be owing to being used in the bulky of heavy duty in above-mentioned main equipment and Universal coupling for overload on the one hand, swing diameter H0 is between φ 650mm to 1300mm, moment of torsion is at 2300KNm to 19405KNm, and the impulsive load causing it to be operationally subject to and moment of torsion are very large; On the other hand, it also will be subject to the very high alternating shock load of frequency in operation process.Therefore, very easily there is fracture and cause scrapping in the critical component articulated cross shaft of heavy duty and super-heavy load universal coupling with spider.
The mechanism of above-mentioned fracture is caused to be: articulated cross shaft is the critical component in heavy duty and super-heavy load universal coupling with spider, and be also weak element, the fatigue fracture of the axle journal root of articulated cross shaft is its main failure mode.There are following several technological difficulties in the strength problem solving these parts: first, by the restriction of the device space, and the mode not by increasing articulated cross shaft size improves the bearing capacity of heavy duty and super-heavy load universal coupling with spider entirety; Secondly, this device is in operation and there is the concentrated problem of stress, and stress concentrates the fatigue fracture caused bottom articulated cross shaft axle journal; Finally, articulated cross shaft of the prior art mainly adopts steel billet hot-forging forming, then processes its axle journal with numerical control machine tool, and the transition structure of the axle journal root of articulated cross shaft adopts single arc surface to seamlessly transit or stepped ramp type transition mostly.The articulated cross shaft of single arc surface transition is adopted easily to be subject to the restriction of cross axle structure size because transition arc is oversize, the problem that stress is concentrated cannot be overcome, articulated cross shaft under this transient mode still produces stress at axle journal root and concentrates, in use still easily rupture, in addition the mechanical processing difficulty of this structure is larger, manufacturability is not good enough, affects the raising of manufacturing efficiency; There is the unexpected change of sectional shape in the articulated cross shaft adopting stepped ramp type knuckle to carry out transition, there is larger stress concentration phenomenon, therefore also effectively cannot solve the problem of easy-rupturing in these shape sudden changes place.
Summary of the invention
Concentrate and the technical barrier of very easily anti-raw fatigue fracture in stress for the articulated cross shaft in the Hooks coupling universal coupling in existing heavy duty and super-heavy load field, the invention provides a kind of stress that can reduce the spindle nose root of articulated cross shaft to concentrate, improve design of part intensity and technological universal-joint cross trunnion.Its concrete structure is:
Articulated cross shaft, by sphere-like matrix 1 and from being connected with bearing of extending of the four direction of matrix 1, spindle nose that shape is consistent forms, namely be made up of matrix 1, first spindle nose 21, second spindle nose 22, the 3rd spindle nose 23 and the 4th spindle nose 24, between the bottom of each spindle nose and matrix 1, be equipped with one in approximate circle taper transition bench, each spindle nose seamlessly transits in approximate circle taper transition bench with coupled; Namely the bottom that the bottom of the first spindle nose 21 is provided with the first spindle nose approximate circle taper transition bench 211, first spindle nose approximate circle taper transition bench 211 be connected with matrix 1 and the side of the first spindle nose approximate circle taper transition bench 211 and matrix 1 tangent; The bottom that the bottom of the second spindle nose 22 is provided with the second spindle nose approximate circle taper transition bench 221, second spindle nose approximate circle taper transition bench 221 be connected with matrix 1 and the side of the second spindle nose approximate circle taper transition bench 221 and matrix 1 tangent; The bottom that the bottom of the 3rd spindle nose 23 is provided with the 3rd spindle nose approximate circle taper transition bench the 231, three spindle nose approximate circle taper transition bench 231 be connected with matrix 1 and the side of the 3rd spindle nose approximate circle taper transition bench 231 and matrix 1 tangent; The bottom that the bottom of the 4th spindle nose 24 is provided with the 4th spindle nose approximate circle taper transition bench the 241, four spindle nose approximate circle taper transition bench 241 be connected with matrix 1 and the side of the 4th spindle nose approximate circle taper transition bench 241 and matrix 1 tangent; The shape of the first spindle nose approximate circle taper transition bench 211, second spindle nose approximate circle taper transition bench the 221, the 3rd spindle nose approximate circle taper transition bench 231 and the 4th spindle nose approximate circle taper transition bench 241 and measure-alike; On shaft section, approximate circle taper transition bench bus 3 is oval camber line.
In addition, the base of the first spindle nose approximate circle taper transition bench 211 and the base of the second spindle nose approximate circle taper transition bench 221 are tangential on an A, the base of the second spindle nose approximate circle taper transition bench 221 and the base of the 3rd spindle nose approximate circle taper transition bench 231 are tangential on a B, the base of the 3rd spindle nose approximate circle taper transition bench 231 and the 4th spindle nose approximate circle taper transition bench 241 be tangential on a C, the base of the 4th spindle nose approximate circle taper transition bench 241 and the first spindle nose approximate circle taper transition bench 211 be tangential on a D; Described some A, some B, some C and some D are coplanar.
In addition, if the first spindle nose 21 and the second spindle nose 22 are along the first symmetry plane 401 specular, second spindle nose 22 and the 3rd spindle nose 23 are along the second symmetry plane 402 specular, 3rd spindle nose 23 and the 4th spindle nose 24 are along the 3rd symmetry plane 403 specular, and the 4th spindle nose 24 and the first spindle nose 21 are along the 4th symmetry plane 404 specular; Cut on the face of looking at axle, the ellipse short shaft a forming the oval camber line of approximate circle taper transition bench bus 3 is all positioned on the symmetry plane of adjacent two cross-axis heads; The minor axis a of the bus 3 namely on the right side of the first spindle nose approximate circle taper transition bench 211 is positioned on the first symmetry plane 401, and the minor axis a of the bus 3 on the left of the first spindle nose approximate circle taper transition bench 211 is positioned on the 4th symmetry plane 404; The minor axis a of the bus 3 above the second spindle nose approximate circle taper transition bench 221 is positioned on the first symmetry plane 401, and the minor axis a of the bus 3 below the second spindle nose approximate circle taper transition bench 221 is positioned on the second symmetry plane 402; On the right side of 3rd spindle nose approximate circle taper transition bench 231, the minor axis a of bus 3 is positioned on the second symmetry plane 402, and on the left of the 3rd spindle nose approximate circle taper transition bench 231, the minor axis a of bus 3 is positioned on the 3rd symmetry plane 403; Below 4th spindle nose approximate circle taper transition bench 241, the minor axis a of bus 3 is positioned on the 3rd symmetry plane 403, and the minor axis a of the bus 3 above the 4th spindle nose approximate circle taper transition bench 241 to be positioned on the 4th symmetry plane on 404.
In addition, the scope of the swing diameter H0 of articulated cross shaft is between 600mm to 1300mm, and the length range forming the minor axis a of the ellipse of the oval camber line of approximate circle taper transition bus 3 is between 0.1 × (swing diameter H0-2 × spindle nose length H1-spindle nose diameter D) to 2 × (swing diameter H0-2 × spindle nose length H1-spindle nose diameter D); The ratio of the major axis b of the minor axis a forming the oval camber line ellipse of approximate circle taper transition bus 3 and the oval camber line ellipse forming approximate circle taper transition bus 3 is between 0.20 to 0.60, wherein, the preferred ratio forming the major axis b of the minor axis a of the oval camber line ellipse of approximate circle taper transition bus 3 and the oval camber line ellipse of formation approximate circle taper transition bus 3 is between 0.45 to 0.50.; The scope of the platform height H2 in approximate circle taper transition bench is between 0.25 × (swing diameter H0-2 × spindle nose length H1-spindle nose diameter D) to 0.3535 × (swing diameter H0-2 × spindle nose length H1-spindle nose diameter D).
useful technique effect
One is provided with respectively in approximate circle taper transition bench between the matrix of articulated cross shaft of the present invention and four spindle noses, each in approximate circle taper transition bench be attached thereto connect be level and smooth transition between spindle nose root and matrix, without the sudden change of sectional shape, thus the stress alleviating cross axle spindle nose root is concentrated, improve the intensity of cross axle, decrease the possibility of fatigue fracture.
Accompanying drawing explanation
Fig. 1 is plan view of the present invention.
Fig. 2 is Fig. 1 plan view.
Fig. 3 is the A-A sectional view of Fig. 2.
The partial enlarged drawing in Tu4Shi Tu3Zhong E district.
The partial enlarged drawing in Tu5Shi Tu3Zhong F district.
The partial enlarged drawing in Tu6Shi Tu3Zhong G district.
The partial enlarged drawing in Tu7Shi Tu3Zhong H district.
Fig. 8 is the stereogram of Fig. 1.
Fig. 9 is the testing result of embodiment 1 under five kinds of torque conditions.
Figure 10 is the testing result of embodiment 2 under five kinds of torque conditions.
Figure 11 is the testing result of embodiment 3 under five kinds of torque conditions.
Sequence number in figure is: matrix 1, first spindle nose 21, second spindle nose 22, the 3rd spindle nose 23, the 4th spindle nose 24, first spindle nose approximate circle taper transition bench 211, second spindle nose approximate circle taper transition bench the 221, the 3rd spindle nose approximate circle taper transition bench the 231, the 4th spindle nose approximate circle taper transition bench 241, approximate circle taper transition bench bus 3, first symmetry plane 401, second symmetry plane 402, the 3rd symmetry plane 403, the 4th symmetry plane 404.
concrete implementation methods
Now be described with reference to the accompanying drawings concrete structure of the present invention.
embodiment 1
See Fig. 1, articulated cross shaft, by sphere-like matrix 1 and from being connected with bearing of extending of the four direction of matrix 1, spindle nose that shape is consistent forms, namely be made up of matrix 1, first spindle nose 21, second spindle nose 22, the 3rd spindle nose 23 and the 4th spindle nose 24, between the bottom of each spindle nose and matrix 1, be equipped with one in approximate circle taper transition bench, each spindle nose seamlessly transits in approximate circle taper transition bench with coupled; Namely the bottom that the bottom of the first spindle nose 21 is provided with the first spindle nose approximate circle taper transition bench 211, first spindle nose approximate circle taper transition bench 211 be connected with matrix 1 and the side of the first spindle nose approximate circle taper transition bench 211 and matrix 1 tangent; The bottom that the bottom of the second spindle nose 22 is provided with the second spindle nose approximate circle taper transition bench 221, second spindle nose approximate circle taper transition bench 221 be connected with matrix 1 and the side of the second spindle nose approximate circle taper transition bench 221 and matrix 1 tangent; The bottom that the bottom of the 3rd spindle nose 23 is provided with the 3rd spindle nose approximate circle taper transition bench the 231, three spindle nose approximate circle taper transition bench 231 be connected with matrix 1 and the side of the 3rd spindle nose approximate circle taper transition bench 231 and matrix 1 tangent; The bottom that the bottom of the 4th spindle nose 24 is provided with the 4th spindle nose approximate circle taper transition bench the 241, four spindle nose approximate circle taper transition bench 241 be connected with matrix 1 and the side of the 4th spindle nose approximate circle taper transition bench 241 and matrix 1 tangent; The shape of the first spindle nose approximate circle taper transition bench 211, second spindle nose approximate circle taper transition bench the 221, the 3rd spindle nose approximate circle taper transition bench 231 and the 4th spindle nose approximate circle taper transition bench 241 and measure-alike; On shaft section, approximate circle taper transition bench bus 3 is oval camber line.
See Fig. 3, the base of the first spindle nose approximate circle taper transition bench 211 and the base of the second spindle nose approximate circle taper transition bench 221 are tangential on an A, the base of the second spindle nose approximate circle taper transition bench 221 and the base of the 3rd spindle nose approximate circle taper transition bench 231 are tangential on a B, the base of the 3rd spindle nose approximate circle taper transition bench 231 and the 4th spindle nose approximate circle taper transition bench 241 be tangential on a C, the base of the 4th spindle nose approximate circle taper transition bench 241 and the first spindle nose approximate circle taper transition bench 211 be tangential on a D; Described some A, some B, some C and some D are coplanar.
See Fig. 3, if the first spindle nose 21 and the second spindle nose 22 are along the first symmetry plane 401 specular, second spindle nose 22 and the 3rd spindle nose 23 are along the second symmetry plane 402 specular, 3rd spindle nose 23 and the 4th spindle nose 24 are along the 3rd symmetry plane 403 specular, and the 4th spindle nose 24 and the first spindle nose 24 are along the 4th symmetry plane 404 specular; Cut on the face of looking at axle, the minor axis a forming the ellipse of the oval camber line of approximate circle taper transition bench bus 3 is all positioned on the symmetry plane of adjacent two cross-axis heads; The minor axis a of the bus 3 namely on the right side of the first spindle nose approximate circle taper transition bench 211 is positioned on the first symmetry plane 401, and the minor axis a of the bus 3 on the left of the first spindle nose approximate circle taper transition bench 211 is positioned on the 4th symmetry plane 404, refers to Fig. 4 and Fig. 7; The minor axis a of the bus 3 above the second spindle nose approximate circle taper transition bench 221 is positioned on the first symmetry plane 401, and the minor axis a of the bus 3 below the second spindle nose approximate circle taper transition bench 221 is positioned on the second symmetry plane 402.Refer to Fig. 4 and Fig. 5; On the right side of 3rd spindle nose approximate circle taper transition bench 231, the minor axis a of bus 3 is positioned on the second symmetry plane 402, and on the left of the 3rd spindle nose approximate circle taper transition bench 231, the minor axis a of bus 3 is positioned on the 3rd symmetry plane 403.Refer to Fig. 5 and Fig. 6; Below 4th spindle nose approximate circle taper transition bench 241, the minor axis a of bus 3 is positioned on the 3rd symmetry plane 403, and the minor axis a of the bus 3 above the 4th spindle nose approximate circle taper transition bench 241 to be positioned on the 4th symmetry plane on 404, refers to Fig. 6 and Fig. 7.
See Fig. 1, the scope of the swing diameter H0 of articulated cross shaft is between 600mm to 1300mm, and the length range forming the minor axis a of the ellipse of the oval camber line of approximate circle taper transition bench bus 3 is between 0.1 × (swing diameter H0-2 × spindle nose length H1-spindle nose diameter D) to 2 × (swing diameter H0-2 × spindle nose length H1-spindle nose diameter D); The ratio of the major axis b of the minor axis a forming the oval camber line ellipse of approximate circle taper transition bench bus 3 and the oval camber line ellipse forming approximate circle taper transition bench bus 3 is between 0.20 to 0.60; The scope of the platform height H2 in approximate circle taper transition bench is between 0.25 × (swing diameter H0-2 × spindle nose length H1-spindle nose diameter D) to 0.3535 × (swing diameter H0-2 × spindle nose length H1-spindle nose diameter D).
Spindle nose diameter D in the present embodiment is 361mm, spindle nose length H1 is 300mm, swing diameter H0 is 1300mm, the length forming the minor axis a of approximate circle taper transition bench bus 3 is 127.4mm, the length forming the major axis b of approximate circular cone transition bench bus 3 is 266mm, and the b length ratio of minor axis a and major axis is 0.479.Fig. 9 is the testing result of the load sample of size described in embodiment 1 being applied to moment of torsion 3900KNm to 11153KNm, adopts stress decreased average 12.2% after this structure after testing.
embodiment 2
See Fig. 1, articulated cross shaft, by sphere-like matrix 1 and from being connected with bearing of extending of the four direction of matrix 1, spindle nose that shape is consistent forms, namely be made up of matrix 1, first spindle nose 21, second spindle nose 22, the 3rd spindle nose 23 and the 4th spindle nose 24, between the bottom of each spindle nose and matrix 1, be equipped with one in approximate circle taper transition bench, each spindle nose seamlessly transits in approximate circle taper transition bench with coupled; Namely the bottom that the bottom of the first spindle nose 21 is provided with the first spindle nose approximate circle taper transition bench 211, first spindle nose approximate circle taper transition bench 211 be connected with matrix 1 and the side of the first spindle nose approximate circle taper transition bench 211 and matrix 1 tangent; The bottom that the bottom of the second spindle nose 22 is provided with the second spindle nose approximate circle taper transition bench 221, second spindle nose approximate circle taper transition bench 221 be connected with matrix 1 and the side of the second spindle nose approximate circle taper transition bench 221 and matrix 1 tangent; The bottom that the bottom of the 3rd spindle nose 23 is provided with the 3rd spindle nose approximate circle taper transition bench the 231, three spindle nose approximate circle taper transition bench 231 be connected with matrix 1 and the side of the 3rd spindle nose approximate circle taper transition bench 231 and matrix 1 tangent; The bottom that the bottom of the 4th spindle nose 24 is provided with the 4th spindle nose approximate circle taper transition bench the 241, four spindle nose approximate circle taper transition bench 241 be connected with matrix 1 and the side of the 4th spindle nose approximate circle taper transition bench 241 and matrix 1 tangent; The shape of the first spindle nose approximate circle taper transition bench 211, second spindle nose approximate circle taper transition bench the 221, the 3rd spindle nose approximate circle taper transition bench 231 and the 4th spindle nose approximate circle taper transition bench 241 and measure-alike; On shaft section, approximate circle taper transition bench bus 3 is oval camber line.
Wherein, spindle nose diameter D in the present embodiment is 328mm, spindle nose length H1 is 225mm, swing diameter H0 is 975mm, the length forming the minor axis a of approximate circular cone transition bench bus 3 is 71.5mm, the length forming the major axis b of approximate circular cone transition bench bus 3 is 153mm, and the length ratio of minor axis and major axis is 0.467.Fig. 9 is the testing result of the load sample of size described in embodiment 1 being applied to moment of torsion 3900KNm to 11153KNm, adopts stress decreased average 14.4% after this structure after testing.
embodiment 3
See Fig. 8, articulated cross shaft, by sphere-like matrix 1 and from being connected with bearing of extending of the four direction of matrix 1, spindle nose that shape is consistent forms, namely be made up of matrix 1, first spindle nose 21, second spindle nose 22, the 3rd spindle nose 23 and the 4th spindle nose 24, between the bottom of each spindle nose and matrix 1, be equipped with one in approximate circle taper transition bench, each spindle nose seamlessly transits in approximate circle taper transition bench with coupled; Namely the bottom that the bottom of the first spindle nose 21 is provided with the first spindle nose approximate circle taper transition bench 211, first spindle nose approximate circle taper transition bench 211 be connected with matrix 1 and the side of the first spindle nose approximate circle taper transition bench 211 and matrix 1 tangent; The bottom that the bottom of the second spindle nose 22 is provided with the second spindle nose approximate circle taper transition bench 221, second spindle nose approximate circle taper transition bench 221 be connected with matrix 1 and the side of the second spindle nose approximate circle taper transition bench 221 and matrix 1 tangent; The bottom that the bottom of the 3rd spindle nose 23 is provided with the 3rd spindle nose approximate circle taper transition bench the 231, three spindle nose approximate circle taper transition bench 231 be connected with matrix 1 and the side of the 3rd spindle nose approximate circle taper transition bench 231 and matrix 1 tangent; The bottom that the bottom of the 4th spindle nose 24 is provided with the 4th spindle nose approximate circle taper transition bench the 241, four spindle nose approximate circle taper transition bench 241 be connected with matrix 1 and the side of the 4th spindle nose approximate circle taper transition bench 241 and matrix 1 tangent; The shape of the first spindle nose approximate circle taper transition bench 211, second spindle nose approximate circle taper transition bench the 221, the 3rd spindle nose approximate circle taper transition bench 231 and the 4th spindle nose approximate circle taper transition bench 241 and measure-alike; On shaft section, approximate circle taper transition bench bus 3 is oval camber line.
Spindle nose diameter D in the present embodiment is 170mm, spindle nose length H1 is 146mm, swing diameter H0 is 650mm, the length of the minor axis a of approximate circle taper transition bench bus (elliptic arc) is 66.6mm, the length of the major axis b of approximate circle taper transition bench bus (elliptic arc) is 146mm, minor axis and the length ratio of major axis be 0.456.Figure 11 is the testing result of the load sample of size described in embodiment 3 being applied to moment of torsion 180KNm to 2878KNm, adopts stress decreased average 14.3% after this structure after testing.
Following table is the Performance comparision adopting the embodiment 1 of this structure, embodiment 2 and embodiment 3 and conventional construction articulated cross shaft.Wherein, former design stress is the articulated cross shaft stress data to adopting the single arc structure of transmission or ledge structure.
Composition graphs 9, Figure 10, Figure 11 and upper table can be learnt, adopt the cross axle of the design effectively can reduce the stress of axle journal root, especially when the ratio of the major axis b of the minor axis a of oval camber line ellipse and the oval camber line ellipse of formation approximate circle taper transition bus 3 that form approximate circle taper transition bus 3 is between 0.20 to 0.60, namely when a/b is between 0.20 to 0.60, the maximum stress of cross axle root significantly reduces, and the intensity of cross axle significantly improves.The reason why producing above-mentioned beneficial effect is that the stress adopting oval transition structure effectively can reduce cross axle root is concentrated; The trunnion journal root of this design is simultaneously and seamlessly transits, and does not have the sudden change of sectional shape; Thus avoid the suddenly change stress that causes of sectional shape to concentrate.
Claims (4)
1. articulated cross shaft, by sphere-like matrix (1) and from being connected with bearing of extending of the four direction of matrix (1), spindle nose that shape is consistent forms, namely be made up of matrix (1), the first spindle nose (21), the second spindle nose (22), the 3rd spindle nose (23) and the 4th spindle nose (24), it is characterized in that, between the bottom of each spindle nose and matrix (1), be equipped with one in approximate circle taper transition bench, each spindle nose seamlessly transits in approximate circle taper transition bench with coupled; Namely the bottom of the first spindle nose (21) is provided with the first spindle nose approximate circle taper transition bench (211), the bottom of the first spindle nose approximate circle taper transition bench (211) be connected with matrix (1) and the side of the first spindle nose approximate circle taper transition bench (211) and matrix (1) tangent; The bottom of the second spindle nose (22) is provided with the second spindle nose approximate circle taper transition bench (221), the bottom of the second spindle nose approximate circle taper transition bench (221) be connected with matrix (1) and the side of the second spindle nose approximate circle taper transition bench 221 and matrix (1) tangent; The bottom of the 3rd spindle nose (23) is provided with the 3rd spindle nose approximate circle taper transition bench (231), the bottom of the 3rd spindle nose approximate circle taper transition bench (231) be connected with matrix (1) and the side of the 3rd spindle nose approximate circle taper transition bench (231) and matrix (1) tangent; The bottom of the 4th spindle nose (24) is provided with the 4th spindle nose approximate circle taper transition bench (241), the bottom of the 4th spindle nose approximate circle taper transition bench (241) be connected with matrix (1) and the side of the 4th spindle nose approximate circle taper transition bench 241 and matrix (1) tangent; The shape of the first spindle nose approximate circle taper transition bench (211), the second spindle nose approximate circle taper transition bench (221), the 3rd spindle nose approximate circle taper transition bench (231) and the 4th spindle nose approximate circle taper transition bench (241) and measure-alike; On shaft section, approximate circle taper transition bench bus (3) is oval camber line;
The scope of the swing diameter H0 of articulated cross shaft is between 600mm to 1300mm, and the length range forming the minor axis a of the ellipse of the oval camber line of approximate circle taper transition bus (3) is between 0.1 × (swing diameter H0-2 × spindle nose length H1-spindle nose diameter D) to 2 × (swing diameter H0-2 × spindle nose length H1-spindle nose diameter D); The ratio of the major axis b of the minor axis a forming the oval camber line ellipse of approximate circle taper transition bus (3) and the oval camber line ellipse forming approximate circle taper transition bus (3) is between 0.20 to 0.60; The scope of the platform height H2 in approximate circle taper transition bench is between 0.25 × (swing diameter H0-2 × spindle nose length H1-spindle nose diameter D) to 0.3535 × (swing diameter H0-2 × spindle nose length H1-spindle nose diameter D).
2. articulated cross shaft as claimed in claim 1, it is characterized in that, the base of the first spindle nose approximate circle taper transition bench (211) and the base of the second spindle nose approximate circle taper transition bench (221) are tangential on an A, the base of the second spindle nose approximate circle taper transition bench (221) and the base of the 3rd spindle nose approximate circle taper transition bench (231) are tangential on a B, the base of the 3rd spindle nose approximate circle taper transition bench (231) and the 4th spindle nose approximate circle taper transition bench (241) be tangential on a C, the base of the 4th spindle nose approximate circle taper transition bench (241) and the first spindle nose approximate circle taper transition bench (211) be tangential on a D, described some A, some B, some C and some D are coplanar.
3. articulated cross shaft as claimed in claim 1, it is characterized in that, if the first spindle nose (21) and the second spindle nose (22) are along the first symmetry plane (401) specular, second spindle nose (22) and the 3rd spindle nose (23) are along the second symmetry plane (402) specular, 3rd spindle nose (23) and the 4th spindle nose (24) are along the 3rd symmetry plane (403) specular, and the 4th spindle nose (24) and the first spindle nose (21) are along the 4th symmetry plane (404) specular; On axle sectional plane, the minor axis a forming the ellipse of the oval camber line of approximate circle taper transition bench bus (3) is all positioned on the symmetry plane of adjacent two cross-axis heads; Namely the minor axis a of the bus (3) on the first spindle nose approximate circle taper transition bench (211) right side is positioned on the first symmetry plane (401), and the minor axis a of the bus (3) in the first spindle nose approximate circle taper transition bench (211) left side is positioned on the 4th symmetry plane (404); The minor axis a of the bus (3) of the second spindle nose approximate circle taper transition bench (221) top is positioned on the first symmetry plane (401), and the minor axis a of the bus (3) of the second spindle nose approximate circle taper transition bench (221) below is positioned on the second symmetry plane (402); The minor axis a of the 3rd spindle nose approximate circle taper transition bench (231) right side bus (3) is positioned on the second symmetry plane (402), and the minor axis a of the 3rd spindle nose approximate circle taper transition bench (231) left side bus (3) is positioned on the 3rd symmetry plane (403); The minor axis a of the 4th spindle nose approximate circle taper transition bench (241) below bus (3) is positioned on the 3rd symmetry plane (403), and the minor axis a of bus (3) of the 4th spindle nose approximate circle taper transition bench (241) top to be positioned on the 4th symmetry plane on (404).
4. articulated cross shaft as claimed in claim 1, it is characterized in that, the ratio of the major axis b of the minor axis a forming the oval camber line ellipse of approximate circle taper transition bus (3) and the oval camber line ellipse forming approximate circle taper transition bus (3) is between 0.45 to 0.50.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310103505.6A CN103148110B (en) | 2013-03-28 | 2013-03-28 | Articulated cross shaft |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310103505.6A CN103148110B (en) | 2013-03-28 | 2013-03-28 | Articulated cross shaft |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103148110A CN103148110A (en) | 2013-06-12 |
| CN103148110B true CN103148110B (en) | 2015-10-07 |
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|---|---|---|---|
| CN201310103505.6A Expired - Fee Related CN103148110B (en) | 2013-03-28 | 2013-03-28 | Articulated cross shaft |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN105526466B (en) * | 2014-09-28 | 2017-09-01 | 中国石油化工集团公司 | Oil-gas pipeline defect internal detector universal joint |
| CN111509388B (en) * | 2020-04-30 | 2022-03-15 | 庆安集团有限公司 | Ground radar antenna system |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4880405A (en) * | 1986-12-09 | 1989-11-14 | Gelenkwellenbau Gmbh | Universal joint of the cardan type |
| CN2293676Y (en) * | 1996-04-23 | 1998-10-07 | 劳光汉 | Anti-shifting fork head type cross universal coupling |
| CN201428752Y (en) * | 2009-06-01 | 2010-03-24 | 马鞍山市联达机械有限责任公司 | Cross bun with barrel-type roller bearing |
| CN203146633U (en) * | 2013-03-28 | 2013-08-21 | 合肥工业大学(马鞍山)高新技术研究院 | Universal crossing shaft |
-
2013
- 2013-03-28 CN CN201310103505.6A patent/CN103148110B/en not_active Expired - Fee Related
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4880405A (en) * | 1986-12-09 | 1989-11-14 | Gelenkwellenbau Gmbh | Universal joint of the cardan type |
| CN2293676Y (en) * | 1996-04-23 | 1998-10-07 | 劳光汉 | Anti-shifting fork head type cross universal coupling |
| CN201428752Y (en) * | 2009-06-01 | 2010-03-24 | 马鞍山市联达机械有限责任公司 | Cross bun with barrel-type roller bearing |
| CN203146633U (en) * | 2013-03-28 | 2013-08-21 | 合肥工业大学(马鞍山)高新技术研究院 | Universal crossing shaft |
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| CN103148110A (en) | 2013-06-12 |
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