CN103195828B - The linkage structure of crankshaft timing sprocket, installing and fixing method and motor - Google Patents
The linkage structure of crankshaft timing sprocket, installing and fixing method and motor Download PDFInfo
- Publication number
- CN103195828B CN103195828B CN201310099712.9A CN201310099712A CN103195828B CN 103195828 B CN103195828 B CN 103195828B CN 201310099712 A CN201310099712 A CN 201310099712A CN 103195828 B CN103195828 B CN 103195828B
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- timing sprocket
- bent axle
- sleeve
- linkage structure
- fixing bolt
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- 238000000034 method Methods 0.000 title claims abstract description 15
- 238000007789 sealing Methods 0.000 claims description 42
- 238000003754 machining Methods 0.000 abstract description 7
- 239000003921 oil Substances 0.000 description 31
- 230000000694 effects Effects 0.000 description 3
- 238000009434 installation Methods 0.000 description 3
- 238000012423 maintenance Methods 0.000 description 3
- 238000010276 construction Methods 0.000 description 2
- 239000010687 lubricating oil Substances 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 238000004663 powder metallurgy Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000009826 distribution Methods 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 238000010791 quenching Methods 0.000 description 1
- 230000000171 quenching effect Effects 0.000 description 1
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Abstract
The invention discloses a kind of linkage structure of crankshaft timing sprocket, installing and fixing method and motor, belong to engine design field.The linkage structure of described crankshaft timing sprocket is arranged on bent axle and timing sprocket, described linkage structure comprises: locating slot, positioning key, sleeve and fixing bolt, described timing sprocket and described sleeve are socketed on described crankshaft journal in turn, described crankshaft end-face is processed with described locating slot, the face that described timing sprocket and described bent axle match is processed with described positioning key, described timing sprocket and described bent axle form key and are connected, described bent axle is provided with tapped hole, described fixing bolt penetrates described tapped hole, and by described fixing bolt, described sleeve and described timing sprocket are fixed on described bent axle.The embodiment of the present invention, by crankshaft end-face locating and machining groove, timing sprocket and bent axle fitting surface is processed with positioning key, and bent axle and timing sprocket, by keyway orientation assemble, make assembling easily, and convenient during repair demolition.
Description
Technical field
The present invention relates to engine design field, particularly a kind of linkage structure of crankshaft timing sprocket, installing and fixing method and motor.
Background technique
As everyone knows, timing sprocket is the important component part of engine air distribution system, and the effect of timing sprocket is equivalent to Timing Belt, coordinates certain velocity ratio to ensure the accurate of inlet and outlet time by the connection of timing sprocket and bent axle.
At present, the installing and fixing method of automobile engine timing sprocket is usual: be adopt axial plane interference be connected and fixed mode, specifically on special heating plant, heat bent axle and timing sprocket, and with instrument timing sprocket be sleeved on that bent axle to carry out installations fixing.
Realizing in process of the present invention, inventor finds that prior art at least exists following problem:
In the method, not only the heating-up temperature of bent axle and timing sprocket is difficult to control, and causes assembling difficulty to increase, and after timing sprocket inefficacy, dismantles and keep in repair very inconvenient.Because bent axle and timing sprocket heat again, be equivalent to carry out temper to sprocket wheel, therefore can affect the quenching hardness of bent axle and timing sprocket, affect sprocket surface hardness, accelerate the wearing and tearing of tooth, time serious, can part failure be caused.
Summary of the invention
Mode is connected and fixed in order to what solve that bent axle and timing sprocket in prior art adopt axial plane interference, the assembling difficulty existed is high, and dismantle and the very inconvenient problem of maintenance, embodiments provide a kind of linkage structure of crankshaft timing sprocket, installing and fixing method and motor.Described technological scheme is as follows:
A kind of linkage structure of crankshaft timing sprocket, described linkage structure is arranged on bent axle and timing sprocket, described linkage structure comprises: locating slot, positioning key, sleeve and fixing bolt, described timing sprocket and described sleeve are socketed on described crankshaft journal in turn, described crankshaft end-face is processed with described locating slot, the end face that described timing sprocket and described bent axle match is processed with shoulder and groove, described positioning key is arranged on described groove, described timing sprocket and described bent axle form key and are connected, described bent axle is provided with tapped hole, described fixing bolt penetrates described tapped hole, and by described fixing bolt, described sleeve and described timing sprocket are fixed on described bent axle.
Particularly, described timing sprocket and described sleeve pass through plane contact.
Further, described linkage structure also comprises oil sealing, and described oil sealing is arranged in described sleeve, and described oil sealing is set on described crankshaft journal.
Further, described sleeve lining is provided with step, and described oil sealing and described step fit.
Particularly, described step is arranged on described sleeve intermediate portion.
Present invention also offers a kind of installing and fixing method of crankshaft timing sprocket, be applied to the linkage structure of described bent axle and timing sprocket, described installing and fixing method carries out in accordance with the following steps: by described timing sprocket, described oil sealing and described jacket casing are connected on described crankshaft journal, in the described locating slot that described positioning key in described timing sprocket is inserted in described bent axle, described timing sprocket and described bent axle form key and are connected, described fixing bolt is penetrated described tapped hole, and by described fixing bolt, described sleeve and described timing sprocket are fixed on described bent axle, by described oil sealing sealing between described sleeve and described timing sprocket, described fixing bolt is with described oil sealing.
Present invention also offers a kind of motor, described motor comprises bent axle and timing sprocket, the linkage structure of described bent axle and described timing sprocket is arranged on described bent axle and described timing sprocket, described linkage structure comprises: locating slot, positioning key, sleeve and fixing bolt, described timing sprocket and described sleeve are socketed on described crankshaft journal in turn, described crankshaft end-face is processed with described locating slot, the end face that described timing sprocket and described bent axle match is processed with shoulder and groove, described positioning key is arranged on described groove, described timing sprocket and described bent axle form key and are connected, described bent axle is provided with tapped hole, described fixing bolt penetrates described tapped hole, and by described fixing bolt, described sleeve and described timing sprocket are fixed on described bent axle.
Particularly, described timing sprocket and described sleeve pass through plane contact.
Further, described linkage structure also comprises oil sealing, and described oil sealing is arranged in described sleeve, and described oil sealing is set on described crankshaft journal.
Further, described sleeve lining is provided with step, and described step is arranged on described sleeve intermediate portion, and described oil sealing and described step fit.
The beneficial effect that the technological scheme that the embodiment of the present invention provides is brought is:
The embodiment of the present invention is passed through at crankshaft end-face locating and machining groove, timing sprocket and bent axle fitting surface are processed with positioning key, bent axle and timing sprocket are by keyway orientation assemble, make assembling easily, and it is convenient during repair demolition, solve bent axle and timing sprocket assembling difficulty is high, and the problem of timing sprocket dismounting difficulty.
Accompanying drawing explanation
In order to be illustrated more clearly in the technological scheme in the embodiment of the present invention, below the accompanying drawing used required in describing embodiment is briefly described, apparently, accompanying drawing in the following describes is only some embodiments of the present invention, for those of ordinary skill in the art, under the prerequisite not paying creative work, other accompanying drawing can also be obtained according to these accompanying drawings.
Fig. 1 is the long splice composition of the crankshaft timing sprocket that the embodiment of the present invention provides.
In figure, each symbol represents that implication is as follows:
1 bent axle, 2 timing sprockets, 3 oil sealings, 4 sleeves, 5 fixing bolts, 6 locating slots, 7 positioning keys.
Embodiment
For making the object, technical solutions and advantages of the present invention clearly, below in conjunction with accompanying drawing, embodiment of the present invention is described further in detail.
Embodiment 1
As shown in Figure 1, the invention provides a kind of linkage structure of crankshaft timing sprocket, described linkage structure is arranged on bent axle 1 and timing sprocket 2, described linkage structure comprises: locating slot 6, positioning key 7, sleeve 4 and fixing bolt 5, described timing sprocket 2 and described sleeve 4 are socketed on described crankshaft journal in turn, described bent axle 1 end face is processed with described locating slot 6, the face that described timing sprocket 2 and described bent axle 1 match is processed with described positioning key 7, described timing sprocket 2 forms key with described bent axle 1 and is connected, described bent axle 1 is provided with tapped hole, described fixing bolt 5 penetrates described tapped hole, and by described fixing bolt 5, described sleeve 4 and described timing sprocket 2 are fixed on described bent axle 1.
With reference to shown in accompanying drawing 1, timing sprocket 2 is coordinated by bent axle 1 end face locating slot 6 and timing sprocket 2 end positioning key 7 with the connection of bent axle 1, sleeve 4 is contained in timing sprocket 2 front-end face by Spielpassung, through bolt hole, sleeve 4 and timing sprocket 2 are fixed on bent axle 1 end face by fixing bolt 5, rear generation pretightening force tightened by fixing bolt 5, under the effect of pretightening force, timing sprocket 2 end face and bent axle 1 locating face produce friction, transferring power.
The embodiment of the present invention is passed through at bent axle 1 end face locating and machining groove 6, timing sprocket 2 with bent axle 1 fitting surface are processed with positioning key 7, bent axle 1 and timing sprocket 2 are by keyway orientation assemble, by transmitting torque after fixing bolt 5 clamp sleeve 4, this construction reduces the difficulty that keyway processed by bent axle 1, compact structure, also reduce timing sprocket 2 installation difficulty, improve the reliability of Power output simultaneously, make assembling easily, and it is convenient during repair demolition, reduce maintenance cost, solve bent axle 1 high with timing sprocket 2 assembling difficulty, and timing sprocket 2 dismantles the problem of difficulty.
In addition, the embodiment of the present invention, positioning key 7 is made on timing sprocket 2, by powder metallurgy die cast, without the need to other machining, reduces manufacture difficulty, reduces processing cost.
Particularly, described timing sprocket 2 passes through plane contact with described sleeve 4.After adopting said structure, the moment of torsion that bent axle 1 transmits by end face with timing sprocket 2 is very little.
Further, described linkage structure also comprises oil sealing 3, and described oil sealing 3 is arranged in described sleeve 4, and described oil sealing 3 is set on described bent axle 1 axle journal, by said structure, make to be sealed by oil sealing 3 between described sleeve 4 and described timing sprocket 2, prevent oil leakage.In addition, described in said structure, fixing bolt 5 is with oil sealing 3, prevents the lubricating oil splash in timing system from going out.
Further, described sleeve 4 inwall is provided with step, and described oil sealing 3 fits with described step, makes described sleeve 4 interior step place adopt oil sealing 3 to seal.
Preferably, described step is arranged on described sleeve 4 intermediate portion.
Embodiment 2
See Fig. 1, present invention also offers a kind of installing and fixing method of crankshaft timing sprocket, be applied to the linkage structure of described bent axle 1 and timing sprocket 2, described installing and fixing method carries out in accordance with the following steps: by described timing sprocket 2, described oil sealing 3 and described sleeve 4 are socketed on described bent axle 1 axle journal, in the described locating slot 6 that described positioning key 7 in described timing sprocket 2 is inserted in described bent axle 1, described timing sprocket 2 forms key with described bent axle 1 and is connected, described fixing bolt 5 is penetrated described tapped hole, and by described fixing bolt 5, described sleeve 4 and described timing sprocket 2 are fixed on described bent axle 1, sealed by described oil sealing 3 between described sleeve 4 and described timing sprocket 2, described fixing bolt 5 is with described oil sealing 3.
The embodiment of the present invention comprises the full content of embodiment 1, therefore the present embodiment passes through at bent axle 1 end face locating and machining groove 6, timing sprocket 2 with bent axle 1 fitting surface are processed with positioning key 7, bent axle 1 and timing sprocket 2 are by keyway orientation assemble, make assembling easily, and convenient during repair demolition, solve bent axle 1 high with timing sprocket 2 assembling difficulty, and timing sprocket 2 dismantles the problem of difficulty.
Embodiment 3
Shown in Figure 1, present invention also offers a kind of motor, described motor comprises bent axle 1 and timing sprocket 2, the linkage structure of described bent axle 1 and described timing sprocket 2 is arranged on described bent axle 1 and described timing sprocket 2, described linkage structure comprises: locating slot 6, positioning key 7, sleeve 4 and fixing bolt 5, described timing sprocket 2 and described sleeve 4 are socketed on described bent axle 1 axle journal in turn, described bent axle 1 end face is processed with described locating slot 6, the face that described timing sprocket 2 and described bent axle 1 match is processed with described positioning key 7, described timing sprocket 2 forms key with described bent axle 1 and is connected, described bent axle 1 is provided with tapped hole, described fixing bolt 5 penetrates described tapped hole, and by described fixing bolt 5, described sleeve 4 and described timing sprocket 2 are fixed on described bent axle 1.
With reference to shown in accompanying drawing 1, timing sprocket 2 is coordinated by bent axle 1 end face locating slot 6 and timing sprocket 2 end positioning key 7 with the connection of bent axle 1, sleeve 4 is contained in timing sprocket 2 front-end face by Spielpassung, through bolt hole, sleeve 4 and timing sprocket 2 are fixed on bent axle 1 end face by fixing bolt 5, rear generation pretightening force tightened by fixing bolt 5, under the effect of pretightening force, timing sprocket 2 end face and bent axle 1 locating face produce friction, transferring power.
The embodiment of the present invention is passed through at bent axle 1 end face locating and machining groove 6, timing sprocket 2 with bent axle 1 fitting surface are processed with positioning key 7, bent axle 1 and timing sprocket 2 are by keyway orientation assemble, by transmitting torque after fixing bolt 5 clamp sleeve 4, this construction reduces the difficulty that keyway processed by bent axle 1, compact structure, also reduce timing sprocket 2 installation difficulty, improve the reliability of Power output simultaneously, make assembling easily, and it is convenient during repair demolition, reduce maintenance cost, solve bent axle 1 high with timing sprocket 2 assembling difficulty, and timing sprocket 2 dismantles the problem of difficulty.
In addition, the embodiment of the present invention, positioning key 7 is made on timing sprocket 2, by powder metallurgy die cast, without the need to other machining, reduces manufacture difficulty, reduces processing cost.
Particularly, described timing sprocket 2 passes through plane contact with described sleeve 4.After adopting said structure, the moment of torsion that bent axle 1 transmits by end face with timing sprocket 2 is very little.
Further, described linkage structure also comprises oil sealing 3, and described oil sealing 3 is arranged in described sleeve 4, and described oil sealing 3 is set on described bent axle 1 axle journal, by said structure, make to be sealed by oil sealing 3 between described sleeve 4 and described timing sprocket 2, prevent oil leakage.In addition, described in said structure, fixing bolt 5 is with oil sealing 3, prevents the lubricating oil splash in timing system from going out.
Further, described sleeve 4 inwall is provided with step, and described oil sealing 3 fits with described step, makes described sleeve 4 interior step place adopt oil sealing 3 to seal.
Preferably, described step is arranged on described sleeve 4 intermediate portion.
The invention described above embodiment sequence number, just to describing, does not represent the quality of embodiment.
The foregoing is only preferred embodiment of the present invention, not in order to limit the present invention, within the spirit and principles in the present invention all, any amendment done, equivalent replacement, improvement etc., all should be included within protection scope of the present invention.
Claims (6)
1. the linkage structure of a crankshaft timing sprocket, it is characterized in that, described linkage structure is arranged on bent axle and timing sprocket, described linkage structure comprises: locating slot, positioning key, sleeve and fixing bolt, described timing sprocket and described sleeve are socketed on described crankshaft journal in turn, described crankshaft end-face is processed with described locating slot, the end face that described timing sprocket and described bent axle match is processed with shoulder and groove, described positioning key is arranged on described groove, described timing sprocket and described bent axle form key and are connected, described bent axle is provided with tapped hole, described fixing bolt penetrates described tapped hole, and by described fixing bolt, described sleeve and described timing sprocket are fixed on described bent axle,
Described timing sprocket and described sleeve pass through plane contact,
Described linkage structure also comprises oil sealing, and described oil sealing is arranged in described sleeve, and described oil sealing is set on described crankshaft journal.
2. linkage structure according to claim 1, is characterized in that, described sleeve lining is provided with step, and described oil sealing and described step fit.
3. linkage structure according to claim 2, is characterized in that, described step is arranged on described sleeve intermediate portion.
4. the installing and fixing method of a crankshaft timing sprocket, it is characterized in that, be applied to the linkage structure described in any one of claim 1-3 claim, described installing and fixing method carries out in accordance with the following steps: by described timing sprocket, described oil sealing and described jacket casing are connected on described crankshaft journal, in the described locating slot that described positioning key in described timing sprocket is inserted in described bent axle, described timing sprocket and described bent axle form key and are connected, described fixing bolt is penetrated described tapped hole, and by described fixing bolt, described sleeve and described timing sprocket are fixed on described bent axle, by described oil sealing sealing between described sleeve and described timing sprocket, described fixing bolt is with described oil sealing.
5. a motor, it is characterized in that, described motor comprises bent axle and timing sprocket, the linkage structure of described bent axle and described timing sprocket is arranged on described bent axle and described timing sprocket, described linkage structure comprises: locating slot, positioning key, sleeve and fixing bolt, described timing sprocket and described sleeve are socketed on described crankshaft journal in turn, described crankshaft end-face is processed with described locating slot, the end face that described timing sprocket and described bent axle match is processed with shoulder and groove, described positioning key is arranged on described groove, described timing sprocket and described bent axle form key and are connected, described bent axle is provided with tapped hole, described fixing bolt penetrates described tapped hole, and by described fixing bolt, described sleeve and described timing sprocket are fixed on described bent axle,
Described timing sprocket and described sleeve pass through plane contact,
Described linkage structure also comprises oil sealing, and described oil sealing is arranged in described sleeve, and described oil sealing is set on described crankshaft journal.
6. motor according to claim 5, is characterized in that, described sleeve lining is provided with step, and described step is arranged on described sleeve intermediate portion, and described oil sealing and described step fit.
Priority Applications (1)
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CN201310099712.9A CN103195828B (en) | 2013-03-26 | 2013-03-26 | The linkage structure of crankshaft timing sprocket, installing and fixing method and motor |
Applications Claiming Priority (1)
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CN201310099712.9A CN103195828B (en) | 2013-03-26 | 2013-03-26 | The linkage structure of crankshaft timing sprocket, installing and fixing method and motor |
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CN103195828A CN103195828A (en) | 2013-07-10 |
CN103195828B true CN103195828B (en) | 2015-12-09 |
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Families Citing this family (1)
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CN103950000B (en) * | 2014-03-14 | 2016-03-30 | 奇瑞汽车股份有限公司 | Power assembly timing system erecting device |
Citations (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB2338279A (en) * | 1998-02-09 | 1999-12-15 | Mannesmann Sachs Ag | Coupling device |
WO2008093656A1 (en) * | 2007-02-02 | 2008-08-07 | Honda Motor Co., Ltd. | Pulser plate mounting structure |
CN102146818A (en) * | 2011-03-22 | 2011-08-10 | 奇瑞汽车股份有限公司 | Installation structure for cam shaft and timing gear |
CN202040305U (en) * | 2011-04-01 | 2011-11-16 | 奇瑞汽车股份有限公司 | Multifunctional integrated chain wheel |
CN102322473A (en) * | 2011-05-24 | 2012-01-18 | 金坛鑫田柴油机有限公司 | Single cylinder diesel convenient for direct connection driving |
CN202305549U (en) * | 2011-10-26 | 2012-07-04 | 浙江吉利汽车研究院有限公司 | Structure for outputting rotating speed signal of automobile engine |
-
2013
- 2013-03-26 CN CN201310099712.9A patent/CN103195828B/en active Active
Patent Citations (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB2338279A (en) * | 1998-02-09 | 1999-12-15 | Mannesmann Sachs Ag | Coupling device |
WO2008093656A1 (en) * | 2007-02-02 | 2008-08-07 | Honda Motor Co., Ltd. | Pulser plate mounting structure |
CN102146818A (en) * | 2011-03-22 | 2011-08-10 | 奇瑞汽车股份有限公司 | Installation structure for cam shaft and timing gear |
CN202040305U (en) * | 2011-04-01 | 2011-11-16 | 奇瑞汽车股份有限公司 | Multifunctional integrated chain wheel |
CN102322473A (en) * | 2011-05-24 | 2012-01-18 | 金坛鑫田柴油机有限公司 | Single cylinder diesel convenient for direct connection driving |
CN202305549U (en) * | 2011-10-26 | 2012-07-04 | 浙江吉利汽车研究院有限公司 | Structure for outputting rotating speed signal of automobile engine |
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